IB skill practice

Use membrane structure to explain transport

Paper 1, Paper 2 5 marks Difficulty 5

Osmosis across a partially permeable membrane

A food enzyme experiment shows water moving through a partially permeable membrane toward a region with higher solute concentration. Name the process. 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.