The part of the human sperm that helps in the fertilisation of the ovum is a cap-like structure called :
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Acrosome
Option (2) Acrosome — Correct. The acrosome is the cap over the front of the head. It is filled with enzymes that help the sperm enter the ovum through the zona pellucida.
NCERT Extract:
Gametogenesis – “… Let us examine the structure of a sperm. It is a microscopic structure composed of a head, neck, a middle piece and a tail (Figure 2.6). 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.”
Figure 2.6 Structure of a sperm