CAIE IGCSE Biology 2.2.1 Magnification formula
Practise using image size, actual size and magnification with cell diagrams, photomicrographs and measured lengths in mm or μm.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- calculate magnification from a measured drawing length and the actual cell size
- rearrange the formula to find actual size from image size and magnification
- state the two measurements needed to calculate the actual length of a labelled structure
2.2.1—Magnification formula question 1
Bacteria are useful in biotechnology and genetic engineering.
Fig. 6.1 shows a photomicrograph of a bacterium.
Fig. 6.1
Write the formula that would be used to calculate the actual width of the bacterium.
All question bank results loaded