IB skill practice

Analyse respiration pathways and energy yield

Paper 1, Paper 2 5 marks Difficulty 5

Compare aerobic and anaerobic yield

A respiration data table in a school gene-mapping practical gives an aerobic yield of 34 ATP per glucose and an anaerobic yield of 2 ATP per glucose. Explain why oxygen changes the yield so much. Enter the answer and choose the interpretation that best matches the HL Biology evidence.

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