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1.1 Cell structure

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Question 20

A scientist counted the mitochondria in two specialised animal cells. The middle section of a sperm cell contained a mean of 50 mitochondria. The nerve endings of one nerve cell contained four times as many mitochondria in total.

a.

Calculate the number of mitochondria in the nerve endings of the nerve cell.

[1]
b.

State the process that takes place in mitochondria.

[1]
c.

Neurotransmitters are made at nerve endings.

Suggest one way the mitochondria support this activity.

[1]
Markscheme

1.1 Cell structure Questions

  1. GCSE
  2. /Biology
  3. /1.1 Cell structure

282 exam-style questions on AQA GCSE Biology 1.1 Cell structure, covering 1.1.1 Eukaryotes and prokaryotes, 1.1.2 Animal and plant cells, 1.1.3 Cell specialisation, 1.1.4 Cell differentiation, 1.1.5 Microscopy, and 1.1.6 Culturing microorganisms. Each one has a worked solution and a mark scheme showing where the marks go.

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