Home
Class 12
BIOLOGY
Assertion . Histamine is involved in all...

Assertion . Histamine is involved in allergic and inflammatory reactions . Reason. Histamine is vasodilator

A

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

B

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

C

If the assertion is true but the reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A
Histamine is derivativve of the aminoacid histidine produced by damaged cells of vertbrates . When released, it has the effect of dialating capillaries and lowering blood pressure . Histamine is involved in allergic and inflammatory reactions.
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion : Histamine is related with allergic and inflamatory reactions Reason : Histamine is a vasodilator

Assertion. Histamine is related with allergic and inflammatory reactions. Reason. Both these drugs suppress brain funciton.

Anti-Histamines are

Blood cells involved in inflammatory reactions are

Histamine is secreted by

Histamine is secreted by

Histamine is secreted by