How does a sperm cell's tail help it reach an egg?
It enables the sperm to swim through fluid toward the egg.
Edexcel Level 1/Level 2 GCSE (9–1) in Biology (1BI0) (Higher) · 1.2
Revise Edexcel Level 1/Level 2 GCSE (9–1) in Biology (1BI0) (Higher) specification point 1.2, Adaptations of specialised cells, with free active-recall flashcards. Flip through the set or review every question and answer below.
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How does a sperm cell's tail help it reach an egg?
It enables the sperm to swim through fluid toward the egg.
How do mitochondria support sperm movement?
They carry out respiration, releasing energy for the tail to beat.
How does the acrosome help a sperm fertilise an egg?
This cap on the sperm head contains enzymes that digest the egg's outer layers, allowing the sperm nucleus to enter.
What does it mean that a sperm nucleus is haploid?
It contains one set of chromosomes, rather than the two sets found in body cells.
Why is it important that the sperm nucleus is haploid?
It combines with the egg's haploid nucleus to restore the normal diploid number in the fertilised egg.