Describe and carry out investigations using redox indicators, including DCPIP and methylene blue, to determine the effects of temperature and substrate concentration on the rate of respiration of yeast
1 Answer
Explain how rice is adapted to grow with its roots submerged in water, limited to the development of aerenchyma in roots, ethanol fermentation in roots and faster growth of stems
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Explain why the energy yield from respiration in aerobic conditions is much greater than the energy yield from respiration in anaerobic conditions (a detailed account of the total yield of ATP from the aerobic respiration of glucose is not expected)
1 Answer
Explain that, when oxygen is available, pyruvate enters mitochondria to take part in the link reaction
1 Answer
Describe the link reaction, including the role of coenzyme A in the transfer of acetyl (2C) groups
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Outline respiration in anaerobic conditions in mammals (lactate fermentation) and in yeast cells (ethanol fermentation)
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Describe the relationship between the structure and function of mitochondria using diagrams and electron micrographs
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Describe the role of NAD and FAD in transferring hydrogen to carriers in the inner mitochondrial membrane
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Explain that reactions in the Krebs cycle involve decarboxylation and dehydrogenation and the reduction of the coenzymes NAD and FAD
1 Answer
Describe and carry out investigations, using simple respirometers, to determine the RQ of germinating seeds or small invertebrates (e.g. blowfly larvae)
1 Answer
