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1.1 Cells and cell structure

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Question 3
F

An egg cell is much larger than a sperm cell. An egg cell can be fertilised by a sperm cell.

a.

The cytoplasm of an egg cell contains a large store of nutrients. Explain why this is important.

[2]
b.

Explain why the egg cell membrane changes after a sperm cell has entered the egg.

[2]
c.

Explain why the egg cell and the sperm cell both have a haploid nucleus.

[2]
Markscheme

1.1 Cells and cell structure Questions

  1. GCSE
  2. /Biology
  3. /1.1 Cells and cell structure

41 exam-style questions on Edexcel GCSE Biology 1.1 Cells and cell structure, covering 1.1.1 Sub-cellular structures and functions, 1.1.2 Specialised cells and their adaptations, and 1.1.3 Microscope technology and cell structures. Each one has a worked solution and a mark scheme showing where the marks go.

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