A-LevelBiologyEnzymes9700/12 · Oct/Nov 2017 · Q141 Mark

Which of these statements describe the action of an extracellular enzyme? 1 synthesis of a polynucleotide in the nucleus during DNA replication, 2 digestion of macromolecules in the lumen of the small intestine, 3 synthesis of ATP molecules in the mitochondria

A1 and 2

B1 and 3

C2 and 3

D2 only

✓ Correct answer

D: 2 only

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