Question

In the absence of acrosome, the sperm

• A. Cannot penetrate the egg
• B. Cannot get energy
• C. Cannot get food
• D. Cannot swim

Answer 1

The correct option is A Cannot penetrate the egg

Acrosome is a cap-like structure over the anterior half of the sperm's head. When the sperm reaches the egg, the membrane surrounding the acrosome fuses with the plasma membrane of the oocyte. As a result, the contents of the acrosome are released. The contents include the enzyme (hyaluronidase) which is a hydrolytic enzyme that digests hyaluronic acid in the corona radiata of the ovum and thereby allowing fertilization to take place.
So, when acrosome is not present, the sperm will not be able to penetrate the egg
So, the correct answer is 'Cannot penetrate the egg'