Multiple Choice Questions

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Select the option having all the correct characteristics.

  •  Structure    Percentage    Function

  •   Structure    Percentage    Function

  •   Structure    Percentage    Function

  •   Structure    Percentage    Function


B.

  Structure    Percentage    Function

D.

  Structure    Percentage    Function

The structure in option (b) is of a basophil. Basophils are granular WBCs and are the least (0.5- 1 per cent) of the total WBCs. They secrete histamine, serotonin, heparin, etc. and are involved in inflammatory reactions.


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Identify the give figure and select the correct option

  • Neutrophil- phagocytic cell which destroy foreign organisms entering the body.

  • Eosinophil- their number increases during allergic infection.

  • Lymphocyte - small sized non-motile and non-phagocytic.

  • Monocyte - motile and phagocytic in nature.


Which antibiotic has bactericidal effect

  • Erythromycin

  • Streptomycin

  • Penicillin

  • Chloramphenicol


Assertion: AIDS is caused by the HIV, a retro-virus.

Reason: Retroviruses have RNA genome.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


Sexual stage (gametocytes) of Plasmodium occurs in

  • Salivary glands of mosquito

  • Human RBC

  • Intestine of mosquito

  • Human liver


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Assertion: Filarial worm is transmitted to humans by Culex mosquito.

Reason: Culex prefers to breed in fresh water.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


Assertion: AIDS and hepatitis B are sexually transmitted diseases.

Reason: There is no permanent cure for both of them

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


Which of the following is not a character of cancerous cells in our body

  • Contact inhibition 

  • Neoplasia

  • Metastasis

  • Inability for differentiation


Which one of the following immune system components does not correctly match with its respective role

  • Interferons - secreted by virus-infected cells and protect non-infected cells from further viral infection

  • B-lymphocytes-produces antibodies in response to pathogens into blood to fight with them

  • Macrophages-mucus secreting cells that trap microbes entering in the body

  • IgA-present in colostrum in early days of lactation and protect infant from diseases


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Choose the correctly matched pair from the following.

  • Gonorrhoea, hepatitis B- sexually transmitted diseases

  • AIDS, gonorrhoea - viral infection

  • Diphtheria, ringworm - fungal infection

  • Diphtheria, tuberculosis - protozoan infection


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