IB skill practice

Use microscopy scale, magnification, and resolution

Paper 1, Paper 2 5 marks Difficulty 5

Calculate magnification

A micrograph in a Melbourne biology practical shows an image length of \(55\,\text{mm}\) for a specimen that is actually \(10\,\text{mm}\). Calculate magnification. Use the labelled diagram, graph, or scale evidence before answering. Enter the answer and choose the interpretation that best matches the biological evidence.

Worked practice: biological evidence and answer

Use the labelled biological evidence first, then connect it to the final answer.