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2 marksCellular Respiration and ATP Synthesis

CAPE Biology Unit 2 · 2004 · Paper 2 · Question 4(a)(i)

Glycolysis biochemistry and anaerobic respiration pathways.

Explain the need for the initial phosphorylations during the process of glycolysis.

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  1. 4(a)(ii)Explain the need for the presence of adenosine diphosphate (ADP) during the process of glycolysis.[2 marks]
  2. 4(a)(iii)Explain the need for the presence of inorganic phosphate during the process of glycolysis.[2 marks]
  3. 4(a)(iv)Explain the need for the presence of nicotinamide adenine dinucleotide phosphate (NADP) / NAD during the process of glycolysis.[2 marks]
  4. 4(a)(v)Explain the need for the conversion of hexose to triose during the process of glycolysis.[2 marks]
  5. 4(b)"The anaerobic pathway used by animals has more potential for energy conservation than anaerobic respiration in plants." Discuss this statement by reference to…[5 marks]
  6. 4(c)Discuss the value to humans of ethanol production by microorganisms.[5 marks]

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