BIO 3302 NYCCT Lab Written Exam IV Spring 2018 Name 1. What is an antigen? A. a
ID: 273070 • Letter: B
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BIO 3302 NYCCT Lab Written Exam IV Spring 2018 Name 1. What is an antigen? A. a protein or carbohydrate B. a foreign protein C. an enzyme in D. a protein produced by the immune system to fight germs 2. What is ELISA? A. a method of detecting the binding of antibody to specific antigens B. a method of detecting antibodies C. a method of detecting antigens D. none of the above 3. Which method(s) is used to diagnosed HIV infection? A, western blot B, southern blot C. ELISA D. a and c E.aand b 4. What is the gold standard for detecting any micro-organism in blood A.western blot B, southern blot C, ELISA D. PCR E.aand b 5. Which bacteria is the common cause of Acne vulgaris in teenagers? A. Ecoli B. salmonella C. pseudomonas D. propionic bacter E. stre 6. Which bacteria is a common cause of dental caries? A. Ecoli B. salmonella C.pseudomonas D propionic bacter E. str 7. Which bacteria is a common cause of UTI(urinary tract infections)? A. Ecoli B. salmonella C. pseudomonas D. propionic bacter E. s 8. Which bacteria is a common cause of food poisoning from raw eggs or chicken A. Ecoli 8. salmonella C.pseudomonas D 9. Which of the following is NOT considered a bacterial STD? propionic bacter E A. Chlamydia B. Syphilis C. Gonorrhea D. HPVExplanation / Answer
1. an antigen is a foreign protein (mostly) but it could also be nucleic acid, polysaccharides particles. so the answer most appropriate is b.
2. a. method of detecting antibodies to specific antigen.
3. a and c are correct, elisa test is done for the dioagnosis and western blot is done to confirm the HIV.
4. d. Polymerase chain reaction (PCR)
5. d. Propionibacterium acnes
6. e. Streptococcus mutans aka streptococci
7. a. E. coli aka Escherichia coli
8. b. Salmonella
9. d. HPV, which stands for human papllioma virus
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