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10 marksCellular Respiration and ATP Synthesis

CAPE Biology Unit 2 · 2006 · Paper 2 · Question 4(b)

With the aid of a diagram, give an account of the process of oxidative phosphorylation (the electron transport chain), to show the roles of hydrogen and electron carriers, phosphate compounds and oxygen in the production of ATP.

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  1. 4(a)(i)Clarify the actions and purposes of the oxidative and decarboxylative reactions which occur in the mitochondria during the entry and processing of pyruvic acid.[4 marks]
  2. 4(a)(ii)Clarify the actions and purposes of the oxidative and decarboxylative reactions which occur in the mitochondria during the rotation of the Krebs cycle.[6 marks]

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