NEETZoologyHuman Reproduction
What does the head of a sperm contain?
Options
- AThe head of a sperm contains a diploid nucleus
- BThe head of a sperm contains a haploid nucleus covered by a cap-like structure, the acrosome
- CThe head of a sperm contains numerous mitochondria
- DThe head of a sperm contains enzymes that help fertilization
Correct answer
B. The head of a sperm contains a haploid nucleus covered by a cap-like structure, the acrosome
Step-by-step solution
It is a microscopic structure composed of a head, neck, a middle piece and a tail. A plasma membrane envelops the whole body of sperm. The sperm head contains an elongated haploid nucleus, the anterior portion of which is covered by a cap-like structure, acrosome . The acrosome is filled with enzymes that help fertilisation of the ovum. The middle piece possesses numerous mitochondria, which produce energy for the movement of tail that facilitate sperm motility essential for fertilisation. The human male ejaculates