The acrosome reaction is triggered by
A)deposition of sperm into the female reproductive tract.
B)capacitation of sperm.
C)estrogen.
D)binding of the heads of sperm to the zona pellucida.
E)the first meiotic reduction division of the ovum.

Question

Quizplus · Accepted Answer

The acrosome reaction is triggered by the binding of the heads of sperm to the zona pellucida, which surrounds the ovum. This binding allows the acrosome, a structure on the head of the sperm containing enzymes, to release its contents and aid in penetrating the zona pellucida.

The Acrosome Reaction Is Triggered by