Which form of the exam do you have

FORM A1. Which form of the exam do you have?A. AB. B2. Scientists recently discovered a drug that can turn off the oncogene myc in mice with livertumors. You would expect this to: A. stop or slow the rate of cancer progressionB. have no effect on cancer progressionC. speed up the rate of cancer progression3. Women experience the symptoms of osteoporosis more acutely than men. Why is this true?A. Women have less bone mass and produce less estrogen later in their lives, whichaccelerates calcium loss. B. Women have less muscle mass and don’t exercise as much. C. Men don’t produce estrogen, so they don’t rely on it as much as women do. D. Men take in more calcium in their diet, so they can’t get osteoporosis. 4. Tamoxifen is a drug that fits into the estrogen receptors. When this happens in breast tissue,it blocks the effects of estrogen. Based on what you know about the relationship betweenestrogen and breast cancer, you would predict that this would: A. help prevent the development of breast cancer in women who are atgreat riskB. starve breast tumorsC. cause the tumor to metastasizeD. stimulate the development of blood vessels that nourish the tumorE. none of the above5. Astronauts returning to Earth from an extended stay in space have to be extremely careful orthey could break a bone. It takes several weeks to restore normal bone strength. Which wouldbe the best regimen to rebuild the lost bone tissue?A. Nothing special is needed, just lie around and watch TV. B. Hit the gym and do a few weeks of heavy weight lifting. C. Several weeks of swimming will rebuild all lost bone mass. D. Start with walking and build up to jogging, with an extra regimen of light weightlifting in the gym. 6. Exercise can prevent ovulation. Based on what you know about the relationship betweenestrogen and breast cancer, how would you predict the risk of breast cancer would be alteredin a woman who exercised regularly from the time she was a teenager into her 40s?A. Her risk would be increased. B. Her risk would be decreased. C. It would have no effect on her risk of breast cancer. 17. Indicate the CORRECT choice statement about fibrocystic breast disorder. A. Fibrocystic disorder is caused by a virus that causes the overproduction of estrogen. B. Fibrocystic disorder usually decreases a woman’s risk of developing breast cancer. C. Fibrocystic disorder occurs either when the breast tissue is over-stimulated to divideor when the reabsorption of tissue is inadequate. D. Fibrocystic disorder is more common after a woman reaches menopause. 8. When p53 detects genetic damage, it normally: A. stimulates the S phase of the cell cycle during which DNA is copied. B. triggers programmed cell deathC. causes the cell to metastasize. D. lengthens telomeres9. During metastasis, when cancer cells spread through the body, they break free from theoriginal tumor and travel in the blood stream. What do normal, healthy cells do if they breakfree from their normal surroundings?A. They increase their rate of cell division. B. They destroy their telomeres. C. They begin meiosis. D. They stop dividing. 10. Indicate the choice that includes only CORRECT statements: Statements: 1. Many women still get their periods after they reach menopause. 2. After menopause, a woman’s level of estrogen is lower than it was when she was inher 30s. . 3. The possibility of developing osteoporosis becomes a greater concern for womenafter they reach menopause. 4. During the time when a woman is approaching menopause she may experiencefrequent hot flashes. `5. All women lose interest in sex after they reach menopause. Choices: A. 1, 2, 3B. 2, 3, 4C. 3, 4, 5D. 1, 4, 5E. 1, 3, 4211. If a man has a tumor on his thyroid gland, causing it to produce too much calcitonin: A. his blood level of calcium would go upB. his blood level of calcium would not changeC. his blood level of calcium would go down12. Carcinogens are chemicals that cause cancer. They might act in each of the following waysEXCEPT: A. They might stimulate cell division. B. They might trigger programmed cell death. C. They might inhibit the immune systemD. They might cause mutations. 13. You are a physician. Following a PBS special on breast cancer, four women come to visit youbecause each has discovered a lump in her breast. In which of the following women would it beLEAST likely that the lump was cancerous?A. Heather is 22. She was a junior in high school when she got her first period. She has atwo-year-old daughter. B. Amy is 30. Her older sisters both have breast cancer. C. Susan is a 60-year-old woman who is a lawyer. She waited to start her family until shewas 30 years old. She reached menopause last year. D. Barbara is 57. She is greatly overweight. and drinks (alcohol) heavily. She justifies hereating and drinking by explaining that she is going through menopause and has swings inemotions. 14. GRN163L is a drug that prevents telomerase from acting. GRN163L might prove to be agood cancer treatment because preventing telomerase activity: A. would prevent cancer cells from breaking cell anchorsB. would cause the tumor cells to starve to deathC. would allow the cancer cells to divide indefinitely15. Which of the following is an INCORRECT statement about the causes of cancer?A. Genetic mutations cause cancer. B. Genetic mutations can be caused by environmental influences, including radiationand certain chemicals. C. A healthy immune system can help prevent cancer. D. All viruses cause cancer. 316. The processing of oxygen can produce harmful chemicals called free radicals, which candamage the cell’s genetic information (cause mutations). Antioxidants, such as vitamins C, E,and beta-carotene, prevent the formation of free radicals. Based on what you have learnedabout the causes of cancer, which is the most likely explanation for the cancer-preventingaction of foods that contain large amounts of antioxidants?A. They inhibit the formation of blood vessels. B. They trigger cell death in cancer cells. C. They form cell attachments that are exceptionally strong. D. They prevent mutations in tumor-suppressor genes and proto-oncogenes. 17. One reason that a woman’s risk of developing breast cancer is increased if her mother orsister have had breast cancer is that she may have inherited: A. p53B an over active immune systemC. a mutated BRCA1 or BRCA2D. estrogen18. Your sister’s breasts get larger and are tender before she gets her period each month. Sheasks you why this happens. You CORRECTLY explain to her that: A. she most likely has fibrocystic breast disorderB. much of the breast is composed of muscle and estrogen causes muscle contractionC. it is caused by a fibroadenomaD. none of the above19. When blood calcium level drops below optimal, which hormone causes calcium to bereleased from bone into the bloodstream?A. BonivaB. EstrogenC. CalcitoninD. PTH (parathyroid hormone)20. Cancer researchers are working on drugs that will prevent the growth of blood vessels to atumor. This would be important because: A. blood brings chemicals that can cause cancer (carcinogens)B. a blood supply brings nutrients to nourish cancer cells and also provides a route bywhich the cells can spreadC. blood brings telomerase to cancer cellsD. blood stimulates tumor suppressor genesE. all of the above421. Radiation therapy is sometimes used as a treatment for cancer. Radiation causes severeDNA damage and affects rapidly dividing cells more than other cells. About half of all cancershave a mutant p53 gene. Why would mutations in p53 make radiation unable to kill cancercells?A. p53 mutations directly cause additional DNA damageB. p53 mutations could prevent the proper activation of programmed cell deathC. p53 prevents the cell from breaking cell adhesion moleculesD. None of the above22. Even if a cell has mutations in the genes that regulate cell division, it usually cannot dividemore than 50 or 60 times. This is because the resulting cells : A. run out of nourishment. B. lose their cell anchors. C. have shaved off the telomeres and begin to damage important genes. D. become carcinogens. 23. Choose the INCORRECT statement about the development of cancer. A. It requires only a single genetic mutation. B. It begins in a single cell. C. It usually results in the development of a tumor. D. The cancer cells must attract a blood supply. 24. Prolonged estrogen exposure increases a woman’s risk of breast cancer because estrogen: A. causes programmed cell deathB. causes mutations (changes in the genetic information) in tumor suppressor genesC. breaks the molecules that anchor cancer cells in place, allowing them to spreadD. stimulates the formation of new blood vesselsE. none of the above25. Cancer can be thought of as a genetic disease, but a person does not inherit cancer from aparent. However, a person can inherit a predisposition to cancer (a tendency to developcancer). This is possible because: A. A person can inherit too many cell anchors (cell adhesion molecules) from a parent. B. A single cancer cell can cross the placenta and enter a fetus. That cell can formtumors much later in life. C. Several mutations are necessary before a cell becomes cancerous. A person mayinherit one of those mutations from a parent. D. A person can inherit too many telomeres and these stimulate cell division. E. None of the above5ABCDUse the diagram to the left to answer thesequestions. 26. To go from stage A to stage B, a cell mustdevelop mutations in the genesA. regulate cell division. B. produce telomeraseC. inhibit the immune systemD. attract blood vessels27. New tumors in other parts of the body canform because of the process shown in whichstage of the diagram?28. Choose the INCORRECT statement: A. Normal cells can divide only 50 – 60 times because after that the telomeres have beenshaved offB. Cancer cells trigger programmed cell death even when the cells have no geneticdamageC. Cancer cells produce proteins that prevent the cell from being held in place but signalthe cell that it is anchoredD. A tumor begins with a single cell that has escaped the normal controls on cell divisionE. Metastasis is the spread of cancer cells from the original location29 Which of the following lists the events that occur in the development of cancer in the correctorder?A. mutation, tumor formation, metastasisB. tumor formation, metastasis, mutationC. metastasis, tumor formation, mutationD. mutation, metastasis, tumor formation30. Indicate the choice that is a risk factors for breast cancer that can be changed. Risk factors: A. GeneticsB. Alcohol consumptionC. Age at pubertyD. Testosterone level6

Which Form Of The Exam Do You Have

Form A Exam 3 Fall 20121. Which form of the exam do you have?A. AB. B2. A friend of yours, Garrett, complains that it burns when he urinates. You know that he met anew girl, Jaclyn, a while ago. Their relationship has become close and they have becomesexually involved with one another. You suggest that he may have chlamydia. He insists that thisis not possible because he has not had sex with anyone except Jaclyn and that they have alwaysbeen completely honest with each other. She would have told him if she had chlamydia. Youthen correctly explain to him that:A. although chlamydia may be sexually transmitted, it is usually obtained by non-sexualmeansB. women with chlamydia usually have no symptoms, so Jaclyn may not have known shewas infectedC. he should be treated immediately because, if untreated, chlamydia is usually fatalD. it doesn’t matter how he got the disease, because there is no treatment and he’ll nowhave it for life3. Things don’t work out for Jaclyn and Garrett. Several years later, Jaclyn marries another friendof yours, George. Although they would like to have children, they are unable to conceive a childafter two years of trying. You recall your earlier suspicion that Jaclyn may have had chlamydia.You correctly mention to the frustrated couple that chlamydial infections may cause infertilitybecause:A. the remaining organisms attack and kill sperm cellsB. bacteria causing the infection often attack and kill the potential egg cells in thewoman’s ovariesC. the high fever during the illness damages the potential egg cellsD. in its final stages chlamydia attacks the nervous system and may disrupt hormonelevelsE. they may cause scar tissue to form in the oviducts4. Choose the INCORRECT statement about plasmids.A. Plasmids are necessary for the survival of bacteria.B. Plasmids can carry many genes for antibiotic resistance (to different antibiotics).C. Plasmids can be copied and transferred to other bacteria.D. Plasmids can be transferred to different kinds (species) of bacteria.5. All of the following are correct statements EXCEPT:A. A reason that a properly used condom may not prevent the spread of an STD is thatthe infected site may not be covered by the condom.B. A reason that a properly used condom may not prevent the spread of an STD is thatdisease organisms can sometimes pass through the latexC. A diaphragm offers a woman some protection against getting an STD from an infectedmale, but it offers little protection for the male if the woman is infected.D. A woman who is using the birth control pill as a means of contraception has anincreased risk of developing certain STDs.26. You are a physician. Your first client is an 18 year old, unmarried woman. Her friends refer toher as “the airhead” because she is so forgetful and disorganized. She is sexually active but not inany stable, long-term relationship. You wisely suggest that the best choice contraception for thiswoman would be:A. a condom for her partnerB. a diaphragmC. spermicidesD. Depo-Provera with a condom for her partner7. Your next client is a young unmarried college student. She has dated only one guy for the lastfew years. They have been sexually intimate for a number of years and are comfortable andfamiliar with one another. He lives in her hometown and she went away to school. They agreedthat they would date other people. They are still eager to get together whenever possible – onschool vacations and on the occasional weekends that he can get off from work. She has highblood pressure. Considering the health risks and benefits associated with each means of birthcontrol, which would be the best choice for this couple.A. a diaphragm plus condom combinationB. douching after intercourseC. the rhythm methodD. the IUDE. the combination birth control pill8. Which of the following is NOT a likely cause of pelvic inflammatory disease?A. chlamydiaB. gonorrheaC. syphilis9. Your best friend, Suzie, just got married. She calls you from San Diego in a panic-strickenfrenzy because she forgot her diaphragm. You assure her that you will send it Fed-Ex. She’llhave it tomorrow. In the meantime, you suggest that the most effective means of birth control forthe honeymoon couple to use is:A. coitus interruptisB. a vaginal sponge and condom combinationC. the rhythm methodD. douching after intercourseE. an IUD10. Droplet infection:A. is transmitted by mosquitoesB. occurs by kissingC. occurs when contaminated food is eatenD. occurs when droplets of mucus containing disease-causing organisms are expelledfrom the upper respiratory system, usually by sneezing or coughing311. Which of the following contains choices of contraception that can be purchased over-thecounter without a prescription?1. condom2. diaphragm3. spermicide4. IUD5. vaginal spongeChoices:A. 1, 2, 3B. 2, 3, 4C. 3, 4, 5D. 1, 3, 5E. 1, 2, 512. Your friend Alicia is in a state of panic. She had intercourse with her husband on day 14 ofher menstrual cycle and the condom broke. She’s worried that she may be pregnant. You ask howlong her typical cycle is. She says she’s very regular and it is always 21 days. So, you correctlyrespond:A. Don’t worry. No matter what the cycle length is, ovulation always occurs on day 1 soit is unlikely that you are pregnant.B. Didn’t you have your period at that time? It is impossible to get pregnant then.C. Get a pregnancy test to be sure you aren’t pregnant, but don’t worry too much. It is notvery likely that a fertile egg was present at that point in your cycle.D. Start knitting little booties. You idiot. Don’t you know that all women ovulate on day14? Of course, you are pregnant.E. You didn’t enjoy it did you? You can’t get pregnant if you didn’t enjoy it.13. Which of the following is a CORRECT statement about spermicides?A. If used as the only means of contraception, foams are the best form to use.B. Spermicides are as effective in preventing pregnancy as a male latex condom if bothare used correctly..C. Spermicides are as effective in the spread of STDs as a male latex condom if both areused correctly.14. Regarding the effectiveness in preventing pregnancy: In which choice are the contraceptiveslisted in order from greatest to least protection (if used correctly).A. diaphragm, male condom, Depo-ProveraB. male condom, spermicides, the birth control pillC. the birth control pill, diaphragm, rhythm methodD. spermicides, male condom, diaphragm415. What is an important difference between human cell structure and bacteria cells?A. bacteria have a cell wallB. bacteria lack DNAC. human cells lack ribosomesD. human cells reproduce both sexually and asexually16. The symptoms of a bacterial disease are caused by:A. damage or death of cells that occurs as bacteria leave the cells after having mademany copies of themselvesB. mutations in the host cell caused by bacteriaC. chemicals ( toxins or enzymes) released by the bacteria that damage cells in theinfected organismD. plasmidsE. none of the above17. Which of the following is a way that you personally can reduce the development of antibioticresistance in bacteria?A. Don’t demand an antibiotic when your health-care provider determines one isn’tappropriate. Ask about ways to help relieve your symptoms.B. Never take an antibiotic for a viral infection such as a cold, a cough, or the flu.C. Take medicine exactly as your health-care provider prescribes. If he or she prescribes anantibiotic, take it until it is gone, even if you’re feeling better.D. Don’t take leftover antibiotics or antibiotics prescribed for someone else. Theseantibiotics may not be appropriate for your current symptoms. Taking the wrongmedicine could delay getting correct treatment and allow bacteria to multiply.E. All of the above18. You are a practitioner in a family planning clinic. Your first client would like to use DepoProvera (an injection of progesterone every 3 months) as a means of birth control. You wiselymention all of the following EXCEPT:A. You can expect that your menstrual cycles may become irregular.B. You may gain a few pounds.C. You may experience some breast tenderness.D. Depo-Provera increases your risk of pelvic inflammatory disease.E. You may miss some periods.19. She asks you how Depo-Provera is thought to prevent pregnancy in all of the following waysEXCEPT:A. The endometrium will not be properly prepared for implantation.B. If implantation does occur, the embryo may be killed or physically dislodged from theendometrium.C. It increases the thickness of cervical mucusD. It may interfere with sperm movement.520. Which of the following is an example of disease transmission by a vector?A. West Nile Virus transmission by mosquitoB. transmission of a cold by sneezingC. food poisoningD. transmission of an STD21. Which of the following would help a woman pinpoint the day on which ovulation hadoccurred?A. Body temperature increases slightly and remains elevatedB. Her sex drive increases to almost uncontrollable levels.C. She begins to bleed from the vagina.D. none of the above22. The bacteria that cause anthrax can cause a skin lesion (sore) or respiratory problems. Whichof the following is an INCORRECT statement explaining why the same bacterium can causedifferent symptoms.A. The symptoms depend on how (where) the bacteria enter the body.B. The bacteria release different toxins in these locationsC. The symptoms appear at the site (location) where the toxins are released.23. You are a physician. A mother brings her 8 year old son to visit because he has a bad cold.She is very concerned that he get well quickly, because he has already missed a week of school.All of the following would be reasonable responses to this woman EXCEPT:A. No, I won’t prescribe an antibiotic because antibiotics are not effective againstviruses. Antibiotic treatment will not shorten his illness.B. No, I won’t prescribe an antibiotic because antibiotics cause plasmids to develop inthe good bacteria causing them to develop antibiotic resistance.C. No, I won’t prescribe an antibiotic because antibiotics could kill the good bacteria inthe body, allowing harmful bacteria to “take over” and cause other illness.24. Which of the following STDs can cause an aneurysm?A. chlamydiaB. gonorrheaC. syphilis25. Which of the following statements is CORRECT?A. The organism that causes syphilis can be spread on toilet seats, drinking glasses andwet towels.B. The organism that causes syphilis can enter the body through a break in the skin.C. Syphilis often causes sterility.D. Men and women are equally likely to contract (get) gonorrhea from an infectedpartner.626. How do most disease-causing bacteria cause damage?A.causing high feversB.causing lesionsC.releasing toxinsD.reproducing asexually27. Mucous membranes are the most likely area where sexually transmitted organisms can enterthe body. Which of the following structures are NOT lined with mucous membranes?A. the urethraB. the vaginaC. the scrotumD. the eyesE. the mouth28. Choose the INCORRECT statement:A. Chlamydia can lead to sterility in either sex.B. Gonorrhea is a common cause of pelvic inflammatory disease.C. The bacterium that causes syphilis can cross the placenta and infect a fetus growing inthe uterus if the mother has syphilisD. The most common STD in the US is syphilis.29. Chlamydia:A. may lead to sterility if it goes untreatedB. is incurableC. is usually incredibly painfulD. causes chancresE. none of the above30. Choose the INCORRECT statement:A. If the bacteria that cause chlamydia are transferred to the eyes, it can cause blindness.B. Gonorrhea, chlamydia, and syphilis can be cured with antibiotics.C. Most women with chlamydia have no symptoms.D. A man with gonorrhea must ejaculate in order to spread the infectious organism to apartner.

Which Form Of The Exam Do You Have

EXAM 4 Fall 2010 FORMA1. Which form of the exam do you have?A. Form AB. Form B2. The HIV virus that causes AIDS specifically attacks and kills helper T cells. This weakens theimmune system because helper T cells:A. directly destroy cells infected with HIVB. roam the body looking for &quot,invaders&quot,C. turn on (activates) the antibody mediated and the cell-mediated defense systems in thebody.D. produce antibodiesE. turn off the immune response3. Choose the INCORRECT statement.A. The antibody-mediated immune response is directed at antigens that are outside ofcells, free in body fluids.B. The cell-mediated immune response plays a role in the rejection of organ transplantsC. A macrophage presents the antigen to the appropriate helper T cell.D. Antibodies are effective against viruses that have inserted their genetic material intothe host cell chromosome.E. Suppressor T cells shut down the immune response after the “invader” (antigen) hasbeen eliminated from the body.4. Which part of a virus comes from a previous host cell? The:A. genetic informationB. the protein coat (capsid)C. the envelopeD. none of the above5. Indicate the choice that contains only CORRECT statements.Statements:1. Antibodies are specific to one particular antigen.2. Antibodies are held within the cell that produces them.3. Antibodies may inactivate (neutralize) a toxin produced by a bacterium.4. Antibodies are produced by macrophages.5. Antibodies can only be effective against antigens that are free in the bloodstream (notwithin cells).Choices:A. 1, 2, 3B. 2, 3, 4C. 3, 4, 5D. 1, 3, 5E. 1, 3, 416. The immune system helps protect us against cancer because _____________ attack and killcancerous cells that develop.A. helper T cellsB. B cellsC. cytotoxic T cellsD. all of the above7. How do viruses gain entry to a host cell?A.by binding to a receptor site on the host cellB.by binding to an antibody site on the host cellsC.by dissolving a piece of the host cell membraneD.all of the above8. Choose the INCORRECT STATEMENT about cervical cancer:A. The human papilloma virus (HPV) is thought to be an important cause of cervicalcancerB. A woman’s risk of getting cervical cancer generally increases with the number of(male) sexual partners she has had.C. A woman’s risk of getting cervical cancer is lowered if she and her partner(s)consistently use a barrier means of contraception, such as a condom or diaphragm.D. It can increase a woman’s risk of having an ectopic pregnancy.E. It can be detected with a Pap test.9. Your brother confides in you that he has painful, fluid-filled blister-like sores on his penis.Which of the following is most likely to be the cause?A. syphilisB. gonorrheaC. chlamydiaD. genital wartsE. genital herpes10. Jennifer is a 28 year-old woman who is having difficulty getting pregnant. After many testsit is determined that the reason for this problem is that she has scar tissue blocking her oviducts(fallopian tubes). The STD that is most likely to have caused this is.A. syphilisB. gonorrheaC. chlamydiaD. genital herpesE. genital warts211.Which of the following directly activates both the cell-mediated immune response and theantibody-mediated immune response?A. memory B cellsB. helper T cellsC. plasma cellsD. cytotoxic T cellsE. suppressor T cells12. An antigen is a:A. cell that produces antibodiesB. receptor on the surface of a lymphocyte that recognizes invadersC. memory cell that causes a quick response to an invader when it is encountered asecond timeD. a large molecule on the surface of an invader that triggers an immune responseE. none of the above13. Your friend Joe has been dating Claudia and they have been sexually active for three months.Joe had never been sexually active before he met Claudia. Joe confides in you that he has noticeda wart forming on his penis. He has asked Claudia whether she has genital warts. She said, &quot,No.I’ve definitely never seen anything remotely resembling a wart on my body.&quot, He asks you wherethey could have come from. You correctly respond.A. You probably got warts from using the dirty urinal in the men’s room of the gas stationwhere you work.B. The organism that causes warts is so common that you could have gotten it anywhere.C. Claudia is obviously lying. She would have seen a wart.D. In women warts often form within the vagina or on the cervix, and so Claudia may notrealize that she has genital warts.E. none of the above14. How does the virus make new genetic information and proteins?A.It combines with the host cell DNA.B.It never does reproduce, it only grows larger.C.It uses the host cell structures.D.Once inside the host cell it is able to reproduce sexually.15. Your immune system does not usually attack cells belonging in your body because:A. suppressor T cells prevent the attackB. the antigens on your body cells block the attackC. antibodies paralyze helper T cellsD. memory cells identify and protect body cellsE. your own body cells have molecules on their surfaces that identify them as belongingin the body316. In which choice are all the STDs usually curable with an antibiotic?A.herpes, chlamydia, gonorrheaB.chlamydia, syphilis, genital wartsC.chlamydia, herpes, syphilisD.genital warts, gonorrhea, syphilisE.chlamydia, gonorrhea, syphilis17. Below you will find a series of steps in the triggering of the immune response. Indicate thechoice that places the steps in the CORRECT order.Steps:a. a virgin (cytotoxic) T cell is activatedb. a macrophage encounters an “invader” (something that is not recognized as belongingin the body)c. a helper T cell is activatedd. a suppressor T cell becomes activee. a cytotoxic T cell destroys the invading cellChoices:A. a, b, c, d, eB. b, c, a, e, dC. d, b, a, c, eD. b, a, c, d, eE. c, a, c, e, d18. Choose the INCORRECT statement:A. If the bacteria that cause chlamydia are transferred to the eyes, it can cause blindness.B. Gonorrhea, chlamydia, and syphilis can be cured with antibiotics.C. Most women with chlamydia have no symptoms.D. A man with gonorrhea must ejaculate in order to spread the infectious organism to apartner.E. HPV, which causes genital warts, can spread over the entire anal genital area.19. Which of the following STDs is INCORRECTLY paired with a means of diagnosis that canbe used at some point in the progression of the disease?A. syphilis — blood testB. gonorrhea — blood testC. chlamydia — urine testD. chlamydia — smear of cells from infected areaE. herpes — blood test420. Your cousin Masoud needs a kidney transplant. The doctors explain that if the tissue type ofthe donor kidney doesn’t match Masoud’s tissue type, that the ________________ of theimmune system would attack and kill the donor kidney, causing the organ to be rejected.A. B cellsB. plasma cellsC. antibodiesD. effector cytotoxic T cellsE. helper T cells21. Therefore, to reduce the possibility of organ rejection, the doctors test all of Masoud’s closerelatives to see whether they would be suitable donors. The doctors are looking for a relative:A. whose tissues have similar “self” markers (MHC markers) to those on Masoud’s cells.B. who lacks antibodies to Masoud’s tissuesC. who has suppressor T cells that will suppress the immune response against the donorkidneyD. lacks macrophagesE. all of the above22. Choose the INCORRECT statement:A. Genital warts can take months to appear.B. The same virus that causes cold sores can be transmitted to the genital area of anotherperson through oral sex.C. Herpes can only be spread when there are symptoms..23. Damage to nerve tissue such as the optic nerve and brain occur during which stage ofsyphilis?A.firstB.secondC.thirdD.it never occurs in syphilis24. Choose the INCORRECT statement.A. A virus infects only a particular type of host cell. This specificity occurs because thevirus genetic material must be compatible with the host cell genetic material for the viral geneticmaterial to be inserted into the host cell chromosome.B. Viruses can be shed without causing disease symptoms.C. Many viruses can enter a latent stage during which they don’t cause diseasesymptoms. During the latent stage the viral genetic material has been inserted into the host cellchromosome.D. Some viruses cause cancer.525. Choose the INCORRECT statement:A. Chlamydia can lead to sterility in either sex.B. HPVcan cause pelvic inflammatory disease.C. Cold sores are caused by a herpes virus.D. The bacterium that causes syphilis can cross the placenta and infect a fetus growing inthe uterus if the mother has syphilis26. Which statement about genital warts is INCORRECT?A. The warts grow faster in a woman who is using a contraceptive containingprogesterone.B. You are not contagious until the warts appearC. The warts may take weeks to months to appearD. The warts are extremely contagiousE. The warts are caused by a virus27.What is the purpose of the antigen that is displayed on the surface of a macrophage?A. It indicates that the “invader” has been captured and the immune response can be shutdown.B. It secretes antibodies.C. It fits in a receptor on the “invader” and neutralizes it (prevents it from making yousick).D. It identifies the target that the immune response should be directed against.E. It causes the target to burst.28. When bacteria infect an animal, the number of bacteria in the body increases gradually. Agraph of the growth of a bacterial population is a smoothly increasing curve as shown in graph 1.A viral infection shows a different pattern. For a while there is no evidence of infection, and thenthere is a sudden increase in the number of viruses. The number stays constant for a time, thenthere is another sudden increase. The curve of viral population growth looks like a series ofsteps, as shown in graph b. Which of the following correctly explains the difference in thepatterns of growth of bacteria and viruses?BacteriaVirusA. Viruses need to rest between division cycles, but bacteria do not need rest.B. Bacteria divide continuously with each cell producing two new cells. Viruses replicatewithin a cell and hundreds or thousands can be released at once.C. The food supply to fuel division for bacteria is always available. The food supply forviruses is only available during limited times, and these are the times when viruses replicate.D. None of the above.629. When you move into the dorms, you learn that there is a girl on the floor who has a herpesinfection in her throat. Others on the floor are afraid that they might catch herpes from using thetoilet seat if she has used it before them. You correctly explain:A. You might, but it would be oral herpes (a fever blister), like she has, and 80% ofAmericans have that.B. You might. You better watch to see if she was in there before you.C. Even if you do get it, you’ll have obvious symptoms, and it is easily cured with anantibiotic.D. The only way that could happen is if she licked the toilet seat when she was sheddingviruses, placing viruses on the toilet seat. Of course, you would also have to sit on the seatimmediately afterward30.The reason that you usually only get chickenpox once is that:A. Antibodies remain forever and immediately neutralize the chickenpox virus if youare ever exposed to it again.B. Suppressor T cells form that immediately suppress the infection if you are everexposed to the virus againC. Chickenpox antigens are only effective once.D. Macrophages can no longer recognize the chickenpox virus as an invader.E. Memory B cells and memory T cells formed that mount an immune response veryquickly if you are ever exposed to the virus again.I SINCERELY HOPE THAT SOMETHING YOU LEARNED IN THIS CLASS WILL HELPYOU TO LEAD A HAPPIER, HEALTHIER LIFE.7

Which Form Of The Exam Do You Have

EXAM 4 Fall 2010 FORMA1. Which form of the exam do you have?A. Form AB. Form B2. The HIV virus that causes AIDS specifically attacks and kills helper T cells. This weakens theimmune system because helper T cells:A. directly destroy cells infected with HIVB. roam the body looking for &quot,invaders&quot,C. turn on (activates) the antibody mediated and the cell-mediated defense systems in thebody. D. produce antibodiesE. turn off the immune response3. Choose the INCORRECT statement. A. The antibody-mediated immune response is directed at antigens that are outside ofcells, free in body fluids. B. The cell-mediated immune response plays a role in the rejection of organ transplantsC. A macrophage presents the antigen to the appropriate helper T cell. D. Antibodies are effective against viruses that have inserted their genetic material intothe host cell chromosome. E. Suppressor T cells shut down the immune response after the “invader” (antigen) hasbeen eliminated from the body. 4. Which part of a virus comes from a previous host cell? The:A. genetic informationB. the protein coat (capsid)C. the envelopeD. none of the above5. Indicate the choice that contains only CORRECT statements. Statements:1. Antibodies are specific to one particular antigen. 2. Antibodies are held within the cell that produces them. 3. Antibodies may inactivate (neutralize) a toxin produced by a bacterium. 4. Antibodies are produced by macrophages. 5. Antibodies can only be effective against antigens that are free in the bloodstream (notwithin cells). Choices:A. 1, 2, 3B. 2, 3, 4C. 3, 4, 5D. 1, 3, 5E. 1, 3, 416. The immune system helps protect us against cancer because _____________ attack and killcancerous cells that develop. A. helper T cellsB. B cellsC. cytotoxic T cellsD. all of the above7. How do viruses gain entry to a host cell?A. by binding to a receptor site on the host cellB. by binding to an antibody site on the host cellsC. by dissolving a piece of the host cell membraneD. all of the above8. Choose the INCORRECT STATEMENT about cervical cancer:A. The human papilloma virus (HPV) is thought to be an important cause of cervicalcancerB. A woman’s risk of getting cervical cancer generally increases with the number of(male) sexual partners she has had. C. A woman’s risk of getting cervical cancer is lowered if she and her partner(s)consistently use a barrier means of contraception, such as a condom or diaphragm. D. It can increase a woman’s risk of having an ectopic pregnancy. E. It can be detected with a Pap test. 9. Your brother confides in you that he has painful, fluid-filled blister-like sores on his penis. Which of the following is most likely to be the cause?A. syphilisB. gonorrheaC. chlamydiaD. genital wartsE. genital herpes10. Jennifer is a 28 year-old woman who is having difficulty getting pregnant. After many testsit is determined that the reason for this problem is that she has scar tissue blocking her oviducts(fallopian tubes). The STD that is most likely to have caused this is. A. syphilisB. gonorrheaC. chlamydiaD. genital herpesE. genital warts211. Which of the following directly activates both the cell-mediated immune response and theantibody-mediated immune response?A. memory B cellsB. helper T cellsC. plasma cellsD. cytotoxic T cellsE. suppressor T cells12. An antigen is a:A. cell that produces antibodiesB. receptor on the surface of a lymphocyte that recognizes invadersC. memory cell that causes a quick response to an invader when it is encountered asecond timeD. a large molecule on the surface of an invader that triggers an immune responseE. none of the above13. Your friend Joe has been dating Claudia and they have been sexually active for three months. Joe had never been sexually active before he met Claudia. Joe confides in you that he has noticeda wart forming on his penis. He has asked Claudia whether she has genital warts. She said, &quot,No. I’ve definitely never seen anything remotely resembling a wart on my body. &quot, He asks you wherethey could have come from. You correctly respond. A. You probably got warts from using the dirty urinal in the men’s room of the gas stationwhere you work. B. The organism that causes warts is so common that you could have gotten it anywhere. C. Claudia is obviously lying. She would have seen a wart. D. In women warts often form within the vagina or on the cervix, and so Claudia may notrealize that she has genital warts. E. none of the above14. How does the virus make new genetic information and proteins?A. It combines with the host cell DNA. B. It never does reproduce, it only grows larger. C. It uses the host cell structures. D. Once inside the host cell it is able to reproduce sexually. 15. Your immune system does not usually attack cells belonging in your body because:A. suppressor T cells prevent the attackB. the antigens on your body cells block the attackC. antibodies paralyze helper T cellsD. memory cells identify and protect body cellsE. your own body cells have molecules on their surfaces that identify them as belongingin the body316. In which choice are all the STDs usually curable with an antibiotic?A. herpes, chlamydia, gonorrheaB. chlamydia, syphilis, genital wartsC. chlamydia, herpes, syphilisD. genital warts, gonorrhea, syphilisE. chlamydia, gonorrhea, syphilis17. Below you will find a series of steps in the triggering of the immune response. Indicate thechoice that places the steps in the CORRECT order. Steps:a. a virgin (cytotoxic) T cell is activatedb. a macrophage encounters an “invader” (something that is not recognized as belongingin the body)c. a helper T cell is activatedd. a suppressor T cell becomes activee. a cytotoxic T cell destroys the invading cellChoices:A. a, b, c, d, eB. b, c, a, e, dC. d, b, a, c, eD. b, a, c, d, eE. c, a, c, e, d18. Choose the INCORRECT statement:A. If the bacteria that cause chlamydia are transferred to the eyes, it can cause blindness. B. Gonorrhea, chlamydia, and syphilis can be cured with antibiotics. C. Most women with chlamydia have no symptoms. D. A man with gonorrhea must ejaculate in order to spread the infectious organism to apartner. E. HPV, which causes genital warts, can spread over the entire anal genital area. 19. Which of the following STDs is INCORRECTLY paired with a means of diagnosis that canbe used at some point in the progression of the disease?A. syphilis — blood testB. gonorrhea — blood testC. chlamydia — urine testD. chlamydia — smear of cells from infected areaE. herpes — blood test420. Your cousin Masoud needs a kidney transplant. The doctors explain that if the tissue type ofthe donor kidney doesn’t match Masoud’s tissue type, that the ________________ of theimmune system would attack and kill the donor kidney, causing the organ to be rejected. A. B cellsB. plasma cellsC. antibodiesD. effector cytotoxic T cellsE. helper T cells21. Therefore, to reduce the possibility of organ rejection, the doctors test all of Masoud’s closerelatives to see whether they would be suitable donors. The doctors are looking for a relative:A. whose tissues have similar “self” markers (MHC markers) to those on Masoud’s cells. B. who lacks antibodies to Masoud’s tissuesC. who has suppressor T cells that will suppress the immune response against the donorkidneyD. lacks macrophagesE. all of the above22. Choose the INCORRECT statement:A. Genital warts can take months to appear. B. The same virus that causes cold sores can be transmitted to the genital area of anotherperson through oral sex. C. Herpes can only be spread when there are symptoms. . 23. Damage to nerve tissue such as the optic nerve and brain occur during which stage ofsyphilis?A. firstB. secondC. thirdD. it never occurs in syphilis24. Choose the INCORRECT statement. A. A virus infects only a particular type of host cell. This specificity occurs because thevirus genetic material must be compatible with the host cell genetic material for the viral geneticmaterial to be inserted into the host cell chromosome. B. Viruses can be shed without causing disease symptoms. C. Many viruses can enter a latent stage during which they don’t cause diseasesymptoms. During the latent stage the viral genetic material has been inserted into the host cellchromosome. D. Some viruses cause cancer. 525. Choose the INCORRECT statement:A. Chlamydia can lead to sterility in either sex. B. HPVcan cause pelvic inflammatory disease. C. Cold sores are caused by a herpes virus. D. The bacterium that causes syphilis can cross the placenta and infect a fetus growing inthe uterus if the mother has syphilis26. Which statement about genital warts is INCORRECT?A. The warts grow faster in a woman who is using a contraceptive containingprogesterone. B. You are not contagious until the warts appearC. The warts may take weeks to months to appearD. The warts are extremely contagiousE. The warts are caused by a virus27. What is the purpose of the antigen that is displayed on the surface of a macrophage?A. It indicates that the “invader” has been captured and the immune response can be shutdown. B. It secretes antibodies. C. It fits in a receptor on the “invader” and neutralizes it (prevents it from making yousick). D. It identifies the target that the immune response should be directed against. E. It causes the target to burst. 28. When bacteria infect an animal, the number of bacteria in the body increases gradually. Agraph of the growth of a bacterial population is a smoothly increasing curve as shown in graph 1. A viral infection shows a different pattern. For a while there is no evidence of infection, and thenthere is a sudden increase in the number of viruses. The number stays constant for a time, thenthere is another sudden increase. The curve of viral population growth looks like a series ofsteps, as shown in graph b. Which of the following correctly explains the difference in thepatterns of growth of bacteria and viruses?BacteriaVirusA. Viruses need to rest between division cycles, but bacteria do not need rest. B. Bacteria divide continuously with each cell producing two new cells. Viruses replicatewithin a cell and hundreds or thousands can be released at once. C. The food supply to fuel division for bacteria is always available. The food supply forviruses is only available during limited times, and these are the times when viruses replicate. D. None of the above. 629. When you move into the dorms, you learn that there is a girl on the floor who has a herpesinfection in her throat. Others on the floor are afraid that they might catch herpes from using thetoilet seat if she has used it before them. You correctly explain:A. You might, but it would be oral herpes (a fever blister), like she has, and 80% ofAmericans have that. B. You might. You better watch to see if she was in there before you. C. Even if you do get it, you’ll have obvious symptoms, and it is easily cured with anantibiotic. D. The only way that could happen is if she licked the toilet seat when she was sheddingviruses, placing viruses on the toilet seat. Of course, you would also have to sit on the seatimmediately afterward30. The reason that you usually only get chickenpox once is that:A. Antibodies remain forever and immediately neutralize the chickenpox virus if youare ever exposed to it again. B. Suppressor T cells form that immediately suppress the infection if you are everexposed to the virus againC. Chickenpox antigens are only effective once. D. Macrophages can no longer recognize the chickenpox virus as an invader. E. Memory B cells and memory T cells formed that mount an immune response veryquickly if you are ever exposed to the virus again. I SINCERELY HOPE THAT SOMETHING YOU LEARNED IN THIS CLASS WILL HELPYOU TO LEAD A HAPPIER, HEALTHIER LIFE. 7

Which form of the exam do you have

Question
EXAM 4 Fall 2010 FORMA
1. Which form of the exam do you have?
A. Form A
B. Form B
2. The HIV virus that causes AIDS specifically attacks and kills helper T cells. This weakens the
immune system because helper T cells:
A. directly destroy cells infected with HIV
B. roam the body looking for "invaders"
C. turn on (activates) the antibody mediated and the cell-mediated defense systems in the
body.
D. produce antibodies
E. turn off the immune response
3. Choose the INCORRECT statement.
A. The antibody-mediated immune response is directed at antigens that are outside of
cells, free in body fluids.
B. The cell-mediated immune response plays a role in the rejection of organ transplants
C. A macrophage presents the antigen to the appropriate helper T cell.
D. Antibodies are effective against viruses that have inserted their genetic material into
the host cell chromosome.
E. Suppressor T cells shut down the immune response after the “invader” (antigen) has
been eliminated from the body.
4. Which part of a virus comes from a previous host cell? The:
A. genetic information
B. the protein coat (capsid)
C. the envelope
D. none of the above
5. Indicate the choice that contains only CORRECT statements.
Statements:
1. Antibodies are specific to one particular antigen.
2. Antibodies are held within the cell that produces them.
3. Antibodies may inactivate (neutralize) a toxin produced by a bacterium.
4. Antibodies are produced by macrophages.
5. Antibodies can only be effective against antigens that are free in the bloodstream (not
within cells).
Choices:
A. 1, 2, 3
B. 2, 3, 4
C. 3, 4, 5
D. 1, 3, 5
E. 1, 3, 4

1

6. The immune system helps protect us against cancer because _____________ attack and kill
cancerous cells that develop.
A. helper T cells
B. B cells
C. cytotoxic T cells
D. all of the above
7. How do viruses gain entry to a host cell?
A.
by binding to a receptor site on the host cell
B.
by binding to an antibody site on the host cells
C.
by dissolving a piece of the host cell membrane
D.
all of the above
8. Choose the INCORRECT STATEMENT about cervical cancer:
A. The human papilloma virus (HPV) is thought to be an important cause of cervical
cancer
B. A woman’s risk of getting cervical cancer generally increases with the number of
(male) sexual partners she has had.
C. A woman’s risk of getting cervical cancer is lowered if she and her partner(s)
consistently use a barrier means of contraception, such as a condom or diaphragm.
D. It can increase a woman’s risk of having an ectopic pregnancy.
E. It can be detected with a Pap test.
9. Your brother confides in you that he has painful, fluid-filled blister-like sores on his penis.
Which of the following is most likely to be the cause?
A. syphilis
B. gonorrhea
C. chlamydia
D. genital warts
E. genital herpes
10. Jennifer is a 28 year-old woman who is having difficulty getting pregnant. After many tests
it is determined that the reason for this problem is that she has scar tissue blocking her oviducts
(fallopian tubes). The STD that is most likely to have caused this is.
A. syphilis
B. gonorrhea
C. chlamydia
D. genital herpes
E. genital warts

2

11.Which of the following directly activates both the cell-mediated immune response and the
antibody-mediated immune response?
A. memory B cells
B. helper T cells
C. plasma cells
D. cytotoxic T cells
E. suppressor T cells
12. An antigen is a:
A. cell that produces antibodies
B. receptor on the surface of a lymphocyte that recognizes invaders
C. memory cell that causes a quick response to an invader when it is encountered a
second time
D. a large molecule on the surface of an invader that triggers an immune response
E. none of the above
13. Your friend Joe has been dating Claudia and they have been sexually active for three months.
Joe had never been sexually active before he met Claudia. Joe confides in you that he has noticed
a wart forming on his penis. He has asked Claudia whether she has genital warts. She said, "No.
I’ve definitely never seen anything remotely resembling a wart on my body." He asks you where
they could have come from. You correctly respond.
A. You probably got warts from using the dirty urinal in the men’s room of the gas station
where you work.
B. The organism that causes warts is so common that you could have gotten it anywhere.
C. Claudia is obviously lying. She would have seen a wart.
D. In women warts often form within the vagina or on the cervix, and so Claudia may not
realize that she has genital warts.
E. none of the above
14. How does the virus make new genetic information and proteins?
A.
It combines with the host cell DNA.
B.
It never does reproduce; it only grows larger.
C.
It uses the host cell structures.
D.
Once inside the host cell it is able to reproduce sexually.
15. Your immune system does not usually attack cells belonging in your body because:
A. suppressor T cells prevent the attack
B. the antigens on your body cells block the attack
C. antibodies paralyze helper T cells
D. memory cells identify and protect body cells
E. your own body cells have molecules on their surfaces that identify them as belonging
in the body

3

16. In which choice are all the STDs usually curable with an antibiotic?
A.
herpes, chlamydia, gonorrhea
B.
chlamydia, syphilis, genital warts
C.
chlamydia, herpes, syphilis
D.
genital warts, gonorrhea, syphilis
E.
chlamydia, gonorrhea, syphilis
17. Below you will find a series of steps in the triggering of the immune response. Indicate the
choice that places the steps in the CORRECT order.
Steps:
a. a virgin (cytotoxic) T cell is activated
b. a macrophage encounters an “invader” (something that is not recognized as belonging
in the body)
c. a helper T cell is activated
d. a suppressor T cell becomes active
e. a cytotoxic T cell destroys the invading cell
Choices:
A. a, b, c, d, e
B. b, c, a, e, d
C. d, b, a, c, e
D. b, a, c, d, e
E. c, a, c, e, d
18. Choose the INCORRECT statement:
A. If the bacteria that cause chlamydia are transferred to the eyes, it can cause blindness.
B. Gonorrhea, chlamydia, and syphilis can be cured with antibiotics.
C. Most women with chlamydia have no symptoms.
D. A man with gonorrhea must ejaculate in order to spread the infectious organism to a
partner.
E. HPV, which causes genital warts, can spread over the entire anal genital area.
19. Which of the following STDs is INCORRECTLY paired with a means of diagnosis that can
be used at some point in the progression of the disease?
A. syphilis — blood test
B. gonorrhea — blood test
C. chlamydia — urine test
D. chlamydia — smear of cells from infected area
E. herpes — blood test

4

20. Your cousin Masoud needs a kidney transplant. The doctors explain that if the tissue type of
the donor kidney doesn’t match Masoud’s tissue type, that the ________________ of the
immune system would attack and kill the donor kidney, causing the organ to be rejected.
A. B cells
B. plasma cells
C. antibodies
D. effector cytotoxic T cells
E. helper T cells
21. Therefore, to reduce the possibility of organ rejection, the doctors test all of Masoud’s close
relatives to see whether they would be suitable donors. The doctors are looking for a relative:
A. whose tissues have similar “self” markers (MHC markers) to those on Masoud’s cells.
B. who lacks antibodies to Masoud’s tissues
C. who has suppressor T cells that will suppress the immune response against the donor
kidney
D. lacks macrophages
E. all of the above
22. Choose the INCORRECT statement:
A. Genital warts can take months to appear.
B. The same virus that causes cold sores can be transmitted to the genital area of another
person through oral sex.
C. Herpes can only be spread when there are symptoms..
23. Damage to nerve tissue such as the optic nerve and brain occur during which stage of
syphilis?
A.
first
B.
second
C.
third
D.
it never occurs in syphilis
24. Choose the INCORRECT statement.
A. A virus infects only a particular type of host cell. This specificity occurs because the
virus genetic material must be compatible with the host cell genetic material for the viral genetic
material to be inserted into the host cell chromosome.
B. Viruses can be shed without causing disease symptoms.
C. Many viruses can enter a latent stage during which they don’t cause disease
symptoms. During the latent stage the viral genetic material has been inserted into the host cell
chromosome.
D. Some viruses cause cancer.

5

25. Choose the INCORRECT statement:
A. Chlamydia can lead to sterility in either sex.
B. HPVcan cause pelvic inflammatory disease.
C. Cold sores are caused by a herpes virus.
D. The bacterium that causes syphilis can cross the placenta and infect a fetus growing in
the uterus if the mother has syphilis
26. Which statement about genital warts is INCORRECT?
A. The warts grow faster in a woman who is using a contraceptive containing
progesterone.
B. You are not contagious until the warts appear
C. The warts may take weeks to months to appear
D. The warts are extremely contagious
E. The warts are caused by a virus
27.What is the purpose of the antigen that is displayed on the surface of a macrophage?
A. It indicates that the “invader” has been captured and the immune response can be shut
down.
B. It secretes antibodies.
C. It fits in a receptor on the “invader” and neutralizes it (prevents it from making you
sick).
D. It identifies the target that the immune response should be directed against.
E. It causes the target to burst.
28. When bacteria infect an animal, the number of bacteria in the body increases gradually. A
graph of the growth of a bacterial population is a smoothly increasing curve as shown in graph 1.
A viral infection shows a different pattern. For a while there is no evidence of infection, and then
there is a sudden increase in the number of viruses. The number stays constant for a time; then
there is another sudden increase. The curve of viral population growth looks like a series of
steps, as shown in graph b. Which of the following correctly explains the difference in the
patterns of growth of bacteria and viruses?

Bacteria

Virus

A. Viruses need to rest between division cycles, but bacteria do not need rest.
B. Bacteria divide continuously with each cell producing two new cells. Viruses replicate
within a cell and hundreds or thousands can be released at once.
C. The food supply to fuel division for bacteria is always available. The food supply for
viruses is only available during limited times, and these are the times when viruses replicate.
D. None of the above.

6

29. When you move into the dorms, you learn that there is a girl on the floor who has a herpes
infection in her throat. Others on the floor are afraid that they might catch herpes from using the
toilet seat if she has used it before them. You correctly explain:
A. You might, but it would be oral herpes (a fever blister), like she has, and 80% of
Americans have that.
B. You might. You better watch to see if she was in there before you.
C. Even if you do get it, you’ll have obvious symptoms, and it is easily cured with an
antibiotic.
D. The only way that could happen is if she licked the toilet seat when she was shedding
viruses, placing viruses on the toilet seat. Of course, you would also have to sit on the seat
immediately afterward
30.The reason that you usually only get chickenpox once is that:
A. Antibodies remain forever and immediately neutralize the chickenpox virus if you
are ever exposed to it again.
B. Suppressor T cells form that immediately suppress the infection if you are ever
exposed to the virus again
C. Chickenpox antigens are only effective once.
D. Macrophages can no longer recognize the chickenpox virus as an invader.
E. Memory B cells and memory T cells formed that mount an immune response very
quickly if you are ever exposed to the virus again.
I SINCERELY HOPE THAT SOMETHING YOU LEARNED IN THIS CLASS WILL HELP
YOU TO LEAD A HAPPIER, HEALTHIER LIFE.

7