HMB202H1F2010Midterm Form B

HMB202H1F2010Midterm Form B - Midterm Exam HMB202H1F...

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FORM B Name___________________________________ Student #______________________________ MULTIPLE CHOICE. Choose the one answer that best answers the question. 20 questions worth 2 marks each, total 40 marks. 1) What has a lipopolysaccharide (LPS) layer in their wall? A) gram-negative Bacteria B) eukaryotic cells C) human cells D) gram-positive Bacteria 2) How does a gram-positive wall compare to a gram-negative wall? A) less complex with a thicker peptidoglycan layer B) less complex with a thinner peptidoglycan layer C) similar complexity with a thicker peptidoglycan layer D) more complex with a thicker peptidoglycan layer 3) Which of the following statements is NOT true? A) Fimbriae are generally shorter and more numerous than flagella. B) Pili serve as receptors that facilitate genetic exchange between prokaryotic cells. C) Fimbriae probably function in surface adhesion. D) Bacterial flagella are appendages that aid survival at high temperatures. 4) What is the first inflammatory cell to arrive at the scene of an infection or tissue damage? A) lymphocyte B) neutrophil C) macrophage D) red blood cell 5) How are antigen-bearing cells destroyed by cytotoxic T cells and T-helper cells, respectively? A) directly, indirectly B) both indirectly C) indirectly, directly D) both directly 6) What does NOT characterize macrophages? A) serve as antigen-presenting cells B) interact with lymphocytes to initiate adaptive immune responses C) circulate in blood and differentiate into monocytes D) ingest most pathogens and foreign molecules Page 1 of 6
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FORM B Name___________________________________ Student #______________________________ 7) What does NOT describe lymphocytes? A) The glycoproteins on the surface of lymphocytes are designated with the prefix CD, for
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This note was uploaded on 11/23/2010 for the course HMB hmb202 taught by Professor Ju,wilson during the Fall '10 term at University of Toronto.

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HMB202H1F2010Midterm Form B - Midterm Exam HMB202H1F...

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