IB skill practice

Analyse cell compartmentalisation and organelle specialization

Paper 1, Paper 2 5 marks Difficulty 4

Link compartmentalisation to metabolism

A cell-fraction diagram in a cell imaging data tutorial shows mitochondria separated from cytosol, with aerobic ATP production localised to the mitochondrial fraction. Analyse why compartmentalisation improves metabolic control. Enter the answer and choose the interpretation that best matches the HL biological evidence.

Worked practice: biological evidence and answer

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