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1.1 Cells and cell structure

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Question 5
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Muscle cells contain large numbers of mitochondria. Why do muscle cells need so many mitochondria?

[1]
A

they make the proteins used to build new muscle fibres

B

they store the glucose needed for muscle contraction

C

they control which substances enter the muscle cells

D

they carry out aerobic respiration to release energy

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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