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2 marksCellular Respiration and ATP Synthesis

CAPE Biology Unit 2 · 2003 · Paper 1 · Question 2(d)

State TWO advantages of using natural enzymes rather than an inorganic catalyst to catalyse the breakdown of carbohydrate solutions.

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  1. 2(a)(i)State which molecule accepts the 2H from NADH2 during anaerobic respiration in animals.[1 mark]
  2. 2(a)(ii)State the product of anaerobic respiration in animals.[1 mark]
  3. 2(a)(iii)State TWO products produced under similar anaerobic conditions in plants.[2 marks]
  4. 2(b)In animals, explain what happens to the product formed during anaerobic respiration when oxygen becomes available again.[2 marks]
  5. 2(c)Suggest TWO reasons for this decline in yeast population.[2 marks]

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