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1.1 Cell structures

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Question 3
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A transmission electron micrograph (TEM) of a skeletal muscle fiber shows a mitochondrion magnified by ×32,000\times 32,000×32,000. The measured length of this mitochondrion in the printed image is 8.0 cm8.0\text{ cm}8.0 cm.

Calculate the actual length of the mitochondrion in micrometres (μm\mu\text{m}μm).

[2]
Markscheme

1.1 Cell structures Questions

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

40 exam-style questions on OCR GCSE Biology 1.1 Cell structures, covering 1.1.1 Viewing cells with light microscopes, 1.1.2 Sub-cellular structures and functions, and 1.1.3 Electron microscopy and resolution. Each one has a worked solution and a mark scheme showing where the marks go.

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