ConceptConceptDocsDocuments

CAIE IGCSE Biology 2.2.2 Magnification & Biological Size

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

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • calculate the actual size of a labelled structure by comparing its image size with a specimen of known actual size

2.2.2—Magnification and size of biological 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 2.2.2—Magnification and size of biological 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

All question bank results loaded