Which type of molecule is produced by viral-infected cells to communicate to non-infected cells in the presence of a virus?

1. Complement

2. Interferon

3. Interleukin

4. Pyrogen

Subtopic:  Details of Immunity |
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Level 1: 80%+
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Acid in the stomach, saliva in the mouth, tears from eyes are examples of which type of barriers in innate immunity?

1. Physical
2. Physiological
3. Cellular
4. Cytokine
Subtopic:  Details of Immunity |
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Level 1: 80%+
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Grafted kidney may be rejected in a patient due to?

1. Humanol immune response

2. Cell-mediated immune response

3. Passive immune response

4. Innate immune response

Subtopic:  Details of Immunity |
 95%
Level 1: 80%+
NEET - 2015
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The type of immunity responsible for graft rejection is:

1. Humoral immunity 2. Cell mediated immunity
3. Innate immunity 4. Hyperimmunity
Subtopic:  Details of Immunity |
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Level 1: 80%+
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Assertion (A): Any subsequent encounter with the same pathogen encountered earlier elicits a highly intensified secondary or anamnestic response.
Reason (R): The body appears to have memory of the first or any previous encounters with the same antigen.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Details of Immunity |
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Level 1: 80%+
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When a person is exposed to the same antigen a second time, the response is
1. a secondary immune response
2. a more rapid response
3. a response mediated by dendritic cells
4. Both 1 and 2 options are correct
Subtopic:  Details of Immunity |
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Level 1: 80%+
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Transplantation of tissues / organs fails often due to non-acceptance by the patient's body. Which type of immune –response is responsible for such rejection
1. Autoimmune response
2. Cell- mediated immune response
3. Hormonal immune response
4. Physiological immune response

Subtopic:  Details of Immunity |
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Level 1: 80%+
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Assertion (A): An antibody is represented as H2L2.
Reason (R): An antibody molecule has two heavy chains and two light chains.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic:  Details of Immunity |
 93%
Level 1: 80%+
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Antibodies are synthesized by
1. B lymphocytes.
2. phagocytes.
3. helper T lymphocytes.
4. killer T lymphocytes.
Subtopic:  Details of Immunity |
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Level 1: 80%+
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Assertion (A): A xenograft, a transplant of organs or tissue from one species to another, is often an extremely dangerous type of transplant.
Reason (R): The chances of rejection of the graft by the immune system of the host are very high.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Details of Immunity |
 92%
Level 1: 80%+
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