Question

The acrosome cap contains

A) Nutrients to sustain the sperm
B) Mitochondria to provide energy for movement
C) Buffers to neutralize the acidity of the female reproductive tract
D) Enzymes to allow penetration into the oocyte
E) Testosterone"

Answer 1

The acrosome cap contains enzymes that enable the sperm to penetrate the protective layers of the oocyte, crucial for fertilization.

Step-by-step explanation:

The acrosome is a critical component of the sperm cell that facilitates fertilization. Contrary to some options, the acrosome is not a source of nutrients or energy nor does it act as a buffer or contain testosterone. Instead, the acrosome is filled with essential enzymes that enable the sperm to penetrate the protective layers surrounding the oocyte, which is vital for fertilization.

When contact is made with these layers, specifically the zona pellucida, the acrosome undergoes an acrosomal reaction. This reaction results in the release of digestive enzymes that break down the protective barriers allowing sperm entry into the oocyte. The correct response to the question, 'The acrosome cap contains', is therefore D) Enzymes to allow penetration into the oocyte.