SSC MTS EXAM

SSC

BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The head of a sperm cell is called
A
spindle fibre
B
corona radiata
C
zona pelllucida
D
acrosome
Explanation: 

Detailed explanation-1: -The acrosome is a unique membranous organelle located over the anterior part of the sperm nucleus that is highly conserved throughout evolution. This acidic vacuole contains a number of hydrolytic enzymes that, when secreted, help the sperm penetrate the egg’s coats.

Detailed explanation-2: -Normal sperm cells have an oval-shaped head with a cap-like covering called the acrosome. The acrosome contains enzymes that break down the outer membrane of an egg cell, allowing the sperm to fertilize the egg.

Detailed explanation-3: -The acrosome is an organelle that develops over the anterior (front) half of the head in the spermatozoa (sperm cells) of many animals including humans. It is a cap-like structure derived from the Golgi apparatus.

Detailed explanation-4: -The acrosome is a membrane-bound organelle of Golgi apparatus origin, commonly located at the tip of the head of mature spermatozoon. It was once called “apical body” because of its location, or “perforatorium” on the assumption that it might assist the spermatozoon boring into the egg.

There is 1 question to complete.