Acrosomal reaction of the sperm occurs due to

Options

A. Its contact with zona pellucida of the ova
B. reactions within the uterine envioronment of the female
C. reactions within the epiddymal environment of the male
D. androgens produced in the uterus.

Answer

A

Explanation

When head of sperm binds to zona pellucida of ovum the acrosome release its contents by exocytosis. The content inside acrosome includes various hydrolytic enzymes like hyaluronidase, coprone penetrating enzymes, etc. This is called acrosmal reaction. It helps the sperm to reach the plasma membrane of ovum, by dissolving corona radiata and zona pellucida.