- Home
- Standard 12
- Biology
7.Human Health and Disease
normal
Assertion : Histamine is involved in allergic and inflammatory reactions.
Reason : Histamine is a vasodilator.
A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
C
If the Assertion is correct but Reason is incorrect.
D
If both the Assertion and Reason are incorrect.
(AIIMS-2012)
Solution
Histamine is a derivative of the amino acid histidine produced by damaged cells of vertebrates. When released, it has the effect of dilating capillaries and lowering blood pressure. Histamine is involved in allergic and inflammatory reactions also.
Standard 12
Biology
