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CAIE IGCSE Biology 2.2.2 Magnification and Size of Biological Questions

Practise calculating magnification, image size and actual specimen size from measurements, diagrams and biological data.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • calculate magnification from image size and actual size
  • calculate actual size from image size and magnification

CAIE IGCSE Biology 2.2.2 Magnification and Size of Biological Questions question 1

[Maximum number: 1]

The diagram shows a magnified image of a human liver cell with a mitochondrion labelled. The actual size of the liver cell is 20μ m20 \mu \mathrm{~m}.

The image size of the liver cell is 40 mm and the image size of the mitochondrion is 4 mm .

Figure for Question CAIE IGCSE Biology 2.2.2 Magnification and Size of Biological Questions question 1 — CAIE IGCSE Biology

What is the actual size of the mitochondrion shown in the diagram?

A

0.002 mm0.002 \mathrm{~mm}

B

0.02 mm

C

0.2 mm0.2 \mathrm{~mm}

D

2 mm

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