Give below are two statements : 
Statement I: When an infected female Anopheles mosquito bites, it releases gametocytes of plasmodium into the healthy person.
Statement II: The female Anopheles mosquito takes up sporozoites of Plasmodium with blood meal form an infected person, suffering from malaria.
In the light of the above statements, choose the most appropriate answer from the options give below :
1. Statement I is correct but Statement II is incorrect 
2. Statement I is incorrect but Statement II is correct 
3. Both Statement I and Statement II are correct 
4. Both Statement I and Statement II are incorrect 

Subtopic:  Common Cold & Malaria Introduction | Treatment & Life Cycle of Malaria |

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Which one of the following acts as the “alarm signal” to activate the body’s immune system by stimulating helper T cells?
1. B cells
2. interleukin-2

3. interleukin-1
4. histamines

 
Subtopic:  Details of Immunity | Active & Passive Immunity |
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The immunoglobin ___________ is involved in the primary response to an invading microorganism, and ____________ is involved in the secondary response.
1. IgG / IgM
2. IgM / IgE

3. IgE / histamines
4. IgM / IgG
Subtopic:  Details of Immunity | Active & Passive Immunity |
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In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)

A:  Second infection of the same pathogen is quickly eliminated.
R:  Killer T cells becomes hyperactivated, and destroy extracellular pathogens
  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Active & Passive Immunity | Allergies & Autoimmunity |
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HIV target include all of the following except
1. macrophages
2. cytotoxic T cells

3. helper T cells
4. cells bearing CD4 and fusin
Subtopic:  AIDS |
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Which of the following best describes the difference in the way B cells and cytotoxic T cells respond to invaders?
1. B cells confer active immunity; cytotoxic T cells confer passive immunity
2. B cells kill viruses directly; cytotoxic T cells kill virus infected cells.
3. B cells secrete antibodies against a virus; cytotxic T cells kill virus-infected cells
4. B cell accomplish humoral immunity.
Subtopic:  Active & Passive Immunity |
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Which of the following are incorrectly paired?
1. Variable Region – determines antibody specificity for an epitope
2. Immunioglobulins – glycoproteins that form epitopes
3. Constant Region – determines class and function of antibody
4. IgG – most abundant circulating antibodies, confer passive immunity to fetus
 
Subtopic:  Active & Passive Immunity |
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A: Inflammatory response is the non-specific defense of the body.
R: Inflamatory response is the part of second line defense of the body.
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1.  If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2.  If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3.  If Assertion is true statement but Reason is false, then mark (3)
4.  If both Assertion and Reason are false statements, then mark (4)
 
  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Details of Immunity |
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If you suspect major deficiency of antibodies in a person, then which of the following would you look for confirmatory evidence? 
1. Serum albumins 
2. Fibrinogen in plasma 
3. Serum globulins 
4. Triglycerides 
Subtopic:  Details of Immunity |
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Allergy is an exaggerated immune response towards antigens present in the environment. Which of the following antibodies are produced in response to these substances? 
1. IgE 
2. IgA 
3. IgM 
4. IgG
Subtopic:  Allergies & Autoimmunity |
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