O Level Biology 14 Views 1 Answers
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SouravNovember 5, 2024

Explain the structure of human sperm with a neat labelled diagram.

Explain the structure of human sperm with a neat labelled diagram.

Sourav
SouravNovember 5, 2024

Answered step-by-step

The structure of human sperm is highly specialized for its role in reproduction. A typical human sperm cell consists of three main parts: the head, midpiece, and tail. Below is a detailed explanation of each component, along with a labeled diagram.

Structure of Human Sperm

1. Head

  • Nucleus: Contains the haploid genetic material (23 chromosomes) necessary for fertilization.
  • Acrosome: A cap-like structure at the front of the head filled with enzymes that facilitate the penetration of the egg’s outer layers during fertilization.

2. Midpiece

  • Mitochondria: Packed with mitochondria that produce ATP (energy) required for the motility of the sperm.
  • Centriole: Located in the neck region, it plays a role in cell division after fertilization.

3. Tail (Flagellum)

  • Structure: Composed of microtubules arranged in a specific pattern (9+2 arrangement) that allows for whip-like motion.
  • Function: Provides motility, enabling the sperm to swim through the female reproductive tract to reach the egg.

Labeled Diagram

Here is a simple representation of a human sperm cell:

Anatomy and Structure of Sperm Cell
Anatomy and Structure of Sperm Cell

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