Structure of a spermशुक्राणु की संरचना

NCERT Fig 2.6 · Class 12 Biology · Chapter 2 · interactive diagram

Parts and their functions

• Acrosome (अग्रपिंडक (एक्रोसोम)) — Cap over the front of the nucleus; filled with enzymes that help the sperm enter the ovum (fertilisation).
• Nucleus (केंद्रक) — Elongated haploid nucleus in the head (23 chromosomes; X or Y).
• Neck (ग्रीवा) — Short region joining head and middle piece.
• Middle piece (मध्य भाग) — Has numerous mitochondria that produce energy for tail movement (motility).
• Tail (पूँछ) — Moves the sperm — motility is essential for fertilisation.
• Plasma membrane (प्लाज़्मा झिल्ली) — Envelops the whole body of the sperm.

Original diagram drawn by Simple Learning Hub, based on NCERT Fig 2.6. Report a mistake