Question

How does the sperm break through the egg cell membrane? Choose the option you think is right.
a) Tears a hole in the membrane b) Dissolves the membrane with chemicals c) Bites through the membrane with teeth d) Squeezes through gaps in the membrane

Answer 1

During fertilization, a sperm must first fuse with the plasma membrane and then penetrate the female egg in order to fertilize it. ... Therefore, sperm cells go through a process known as the acrosome reaction which is the reaction that occurs in the acrosome of the sperm as it approaches the egg.ans....(d)
I hope it's help U :-)

Answer 2

The correct option is Option (b).

Explaination :

When the sperm reaches the cell membrane of the egg, then it brings some changes that occurs in the membrane.

The layer of the ovum to which the sperm comes in contact is the layer named as Zona pellucida.

It changes the membrane in such a manner that no any more sperm can get entry into the ovum.

Thus it ensures that only 1 sperm is fused with the egg or ovum.