IB skill practice

Describe water and carbon compounds in living systems

Paper 1, Paper 2 5 marks Difficulty 4

Relate hydrophobic lipids to water

A cell respiration data workshop shows oil droplets separating from water. Explain the property of lipids shown by this observation. 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.