Assertion (A) Chemical messengers are chemicals that enable communications of message between tow neurons or between or between neurons and muscles.
Reason (R) Chemicals enter the cell through receptor.

Options

A. Assertion and reason both are correct statements but reason does not explain assertion.
B. Assertion and reason both are correct and reason explains the assertion.
C. Both assertion and reason are wrong statements.
D. Assertion is correct statement reason is wrong statement.

Answer

D

Explanation

Asseration is correct statement reason is wrong statement. Correct reason Chemicals ind to the receptor sites present on the surface of the membrane or the cell. They give massage to the cell without entering the cell.