Acrosome and it's membrane is called :-

Space between acrosome and nucleus is called :-

Space between acrosome and nucleus is called :-

Cell membrane is also called-

(A) : If acrosome is removed from a sperm it will fail to penetrate into ovum (R) : Acrosome produces sperm lysins called hyaluronidase.

The vacuoles are surrounded by a thin membrane called

The vacuole is lined by a membrane called:

Why the plasma membrane is called selectively permeable membrane?