2.36 Aerobic and anaerobic respiration
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Which is a product of anaerobic respiration in human muscle?
(1)Total for this question: 1 mark
2(f) RESPIRATION · EXAM QUESTIONS
2.36 Aerobic and anaerobic respiration
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2.36 Aerobic and anaerobic respiration
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Which releases the most energy from one glucose molecule?
(1)Total for this question: 1 mark
2.36 Aerobic and anaerobic respiration
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Which statement is true for anaerobic respiration in yeast?
(1)Total for this question: 1 mark
2.36 Aerobic and anaerobic respiration
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Give two differences between aerobic and anaerobic respiration.
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Total for this question: 2 marks
2.36 Aerobic and anaerobic respiration
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Compare aerobic respiration with anaerobic respiration in human muscles.
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Total for this question: 3 marks
2.36 Aerobic and anaerobic respiration
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Explain why muscles respire anaerobically during a 100 m sprint.
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Total for this question: 2 marks
2.36 Aerobic and anaerobic respiration
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Explain why a person keeps breathing deeply after a sprint has finished.
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Total for this question: 3 marks
2.36 Aerobic and anaerobic respiration
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Explain why anaerobic respiration cannot be used by muscles for long periods.
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Total for this question: 2 marks
2.36 Aerobic and anaerobic respiration
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Suggest why the muscles of a trained athlete produce less lactic acid during exercise than those of an untrained person.
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Total for this question: 2 marks
2.36 Aerobic and anaerobic respiration
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Explain why yeast is grown with plenty of oxygen when a company wants a large population of yeast.
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Total for this question: 2 marks
2.36 Aerobic and anaerobic respiration
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Explain why a brewer keeps oxygen out of the fermentation tank.
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Total for this question: 2 marks
2.36 Aerobic and anaerobic respiration
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Blood lactic acid during and after a 4-minute race Time / min Lactic acid / mmol/dm³ 0 (rest) 1.0 2 6.4 4 (race ends) 9.8 10 7.1 20 4.0 30 2.2 Illustrative data, not from a real investigation. The table shows blood lactic acid concentration before, during and after a race. Describe the changes.
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Total for this question: 3 marks
2.36 Aerobic and anaerobic respiration
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Blood lactic acid during and after a 4-minute race Time / min Lactic acid / mmol/dm³ 0 (rest) 1.0 2 6.4 4 (race ends) 9.8 10 7.1 20 4.0 30 2.2 Illustrative data, not from a real investigation. Use the table to explain why the lactic acid concentration falls after the race.
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Total for this question: 2 marks
2.36 Aerobic and anaerobic respiration
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Blood lactic acid during and after a 4-minute race Time / min Lactic acid / mmol/dm³ 0 (rest) 1.0 2 6.4 4 (race ends) 9.8 10 7.1 20 4.0 30 2.2 Illustrative data, not from a real investigation. Using the table, calculate the percentage increase in lactic acid from rest to the end of the race.
(2)%Total for this question: 2 marks
2.36 Aerobic and anaerobic respiration
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Explain why bacteria living deep in mud respire anaerobically.
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Total for this question: 2 marks