Pretest-2010

Pretest-2010 - Jan 29 2010 PRETEST BSCI425 2010 S Benson 1...

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Unformatted text preview: Jan. 29, 2010 PRETEST 1/27/10 BSCI425 2010 @ S. Benson 1 Test... 1/27/10 BSCI425 2010 @ S. Benson 2 N o y e s 0% 0% 1. No 2. yes Question1 Pathogens and hosts have co-evolved in mutual fashion over many centuries. This implies that bacteria that have co-evolved with hosts are more likely to : 1/27/10 BSCI425 2010 @ S. Benson 3 C a u s e s e v e r e d i s e a s e s y . . . B e e a s i e r t o g r o w i n a l a . . . B e a n t i b i o t i c r e s i s t a n t . H a v e a n a r r o w h o s t r a n g e . 0% 92% 8% 0% 1. Cause severe disease symptoms. 2. Be easier to grow in a lab setting (easier to culture). 3. Be antibiotic resistant. 4. Have a narrow host range. Question 2 Which of the following statements is most accurate about the adaptive immune response? A throat infection by Staphylococcus species : 1/27/10 BSCI425 2010 @ S. Benson 4 w i l l c o n f e r p r o t e c t i o n f . . . w i l l c o n f e r p r o t e c t i o n f r . . w i l l c o n f e r p r o t e c t i o n f . . . w i l l N O T c o n f e r p r o t e c t i . . w i l l N O T c o n f e r p r o t e c t i . . 29% 29% 2% 31% 8% 1. will confer protection from infection by Streptococcus because Staphylococcus sp. induced a similar initial immune response. 2. will confer protection from infection by Streptococcus because Staphylococcus sp. induced a cross-reactive antibody. 3. will confer protection from infection by Streptococcus because Staphylococcus sp. induced a complement response. 4. will NOT confer protection from infection by Streptococcus because Staphylococcus sp. induces an insufficient level of cross-reactive antibodies. 5. will NOT confer protection from infection by Streptococcus because the Staphylococcus sp. infection suppressed the immune response. Question 3 Two roommates fall ill: one has an ear infection and one has pneumonia. Is it likely that the same causative agent is responsible for both types of disease? 1/27/10 BSCI425 2010 @ S. Benson 5 Y e s , b e c a u s e b o t h i n d i v i . . . Y e s , b e c a u s e t h e s a m e b . . . N o , b e c a u s e e a c h b a c t e . . . N o , b e c a u s e o n e i n f e c t i o . . . 0% 4% 0% 96% 1. Yes, because both individuals live in the same room and therefore the source of the infection has to be the same. 2. Yes, because the same bacteria can adapt to different surroundings....
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This note was uploaded on 07/07/2010 for the course BSCU 425 taught by Professor Rollins during the Fall '10 term at Maryland.

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Pretest-2010 - Jan 29 2010 PRETEST BSCI425 2010 S Benson 1...

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