IB skill practice

Analyse carbohydrates, lipids, and proteins

Paper 1, Paper 2 5 marks Difficulty 5

Identify carbohydrate subunits

A molecular diagram in an lake-weed photosynthesis practical shows several glucose units joined in a chain. Identify the biomolecule group and its monomer. 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.