Assertion : Interferons are a type of antibodies produced by body

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 Multiple Choice QuestionsMultiple Choice Questions

171.

Which one of the following is correctly matched regarding an Institute and its location

  • National Institute of Virology - Pune

  • National lnstitute of Communicable Diseases - Lucknow

  • Central Drug Research Institute - Kasauli

  • National Institute of Nutrition - Mumbai


172.

Electron beam therapy is a kind of radiation therapy to treat

  • Enlarged prostrate gland

  • Gall bladder stones by breaking them

  • Certain types of cancer

  • Kidney stones.


173.

Severe Acute Respiratory Syndrome (SARS)

  • is caused by a variant of Pneumococcus pneumonia

  • is caused by a variant of the common cold virus (coronavirus)

  • is an acute form of asthma 

  • affects non-vegetarians much faster than the vegetarians


174.

Cattle fed with spoilt hay of sweet clover which contains dicumarol

  • are healthier due to a good diet

  • catch infections easily

  • may suffer vitamin K deficiency and prolonged bleeding

  • may suffer from beri beri due to deficiency of B vitamins.


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175.

The treatment of snake-bite by antivenom is an example of

  • artificially acquired active immunity

  • artificially acquired passive immunity

  • naturally acquired passive immunity

  • specific natural immunity.


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176.

Assertion : Interferons are a type of antibodies produced by body cells infected by bacteria.

Reason : Interferons stimulate inflammation at the site of injury.

  • If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

  • If both Assertion and Reason are true but the Reason is not the correct explanation of the assertion

  • If Assertion is true but Reason is false

  • If both Assertion and Reason are false


D.

If both Assertion and Reason are false

Interferons are not antibodies. These are natural proteins produced by the cells of the immune systems of most animals in response to challenges by foreign agents such as viruses, bacteria, parasites and tumor cells.

They belong to a large group of proteins known as cytokines. These are of 3 types:- αβ and γ. Alpha and Beta interferon are produced by many cell types such as T- cells and B- cells and are important component of the antiviral response. They stimulate both macrophages and NK (Natural Killer) cells. 

Inflammation is the first response to infection and injury and is critical to body defence. Basically, it is an attempt by the body to restore and maintain homeostasis after injury. It is the influx of fluid and cells that results in redness, swelling, heat, and pain at the infection site.


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177.

Assertion : Organ transplantation patients are given immunosuppressive drugs.

Reason : Transplanted tissue has antigens which stimulate the specific immune response of the recipient.

  • If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion

  • If both Assertion and Reason are true but the Reason is not the correct explanation of the assertion

  • If Assertion is true but Reason is false

  • If both Assertion and Reason are false


178.

Just as Xenopsylla is to Yersenia pestis, so is:

  • Glossina palpalis to Wuchereria bancrofti

  • Culex to Plasmodium falciparum

  • Homo sapiens to Taenia solium

  • Phlebotomus to Leishmania donovani


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179.

Assertion: Tapeworm, roundworm and pinworm are endoparasites of human intestine.,

Reason: Improperly cooked food is the source of all intestinal infections.

  • 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.


180.

Assertion: Dope test is used to estimate the level of blood alcohol by analysing the breath of persons drinking alcohol.

Reason: A drunken person usually feels tense and less talkative

  • 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.


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