Microbiology - Immune System
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Exercise"Everyone is wise until he speaks."
- (Proverb)
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| 21. |
Lysozyme is present in |
| A. |
sweat | | B. |
Cerebro spinal fluid (CSF) | | C. |
urine | | D. |
saliva |
Answer: Option A
Explanation:
No answer description available for this question. Let us discuss.
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| 22. |
Macrophages are professional antigen- presenting cells. The protein molecule through which they present antigen in human is |
Answer: Option E
Explanation:
No answer description available for this question. Let us discuss.
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| 23. |
The role of the M cell is to |
| A. |
trap virus in mucus and prevent entry | | B. |
induce apoptosis in virus-infected small intestinal epithelia cells | | C. |
pass bacteria or virus to underlying macrophages for processing and presentation of antigen | | D. |
they use their cilia to propel mucus out of the small intestine |
Answer: Option B
Explanation:
No answer description available for this question. Let us discuss.
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| 24. |
Which of the following statements is false regarding B cells? |
| A. |
B cells can undergo class switching and produce a different antibody type | | B. |
B one marrow stem cells migrate to the thymus and develop into B cells | | C. |
B cells synthesize antibodies and put them on their cell surface | | D. |
B cells that recognize high concentrations of antigens (self) in the absence of other signals undergo apoptosis in the bone marrow |
Answer: Option D
Explanation:
No answer description available for this question. Let us discuss.
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