Question

Assertion : Cell membrane is semipermeable.
Reason : The constituent molecules can freely move in the membrane.
A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C. If the assertion is true but the reason if false
D. If both the assertion and reason are false

Answer 1

Correct Answer - B
Cell membrane is semi permeable as it allows continuous flow of selected materials across it as required from time to time. On the other hand, constituent moelcues of cell membrane are free to move inside membrane.