Gujarati
Hindi
7.Human Health and Disease
medium

Antigen is a substance which

A

lowers body temperature

B

destroys harmful bacteria

C

triggers the immune system

D

is used as an antidote to poison

(AIIMS-2010)

Solution

Antigen is the only foreign substance which triggers immune system by way of antibody formation. These antibodies neutralize antigen by antigen-antibody reaction.

Standard 12
Biology

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