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10 Cards in this Set
- Front
- Back
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What processes can't take place without a supply of oxygen?
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Krebs cycle or electron transport chain
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NAD is reduced in the conversion of glucose to pyruvate, how is it oxidised again?
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The pyruvate molecule accepts hydrogen from reduced NAD
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What is produced during AR in plants (+ yeast)?
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Ethanol and carbon dioxide
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What is produced during AR in animals?
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Lactate
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Pyruvate + reduced NAD (plants) -->
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Ethanal + carbon dioxide + NAD
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Why is AR useful?
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If a baby mammal in the period immediately after birth, and in an animal living in water where the amount of oxygen may sometimes be very low
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Pyruvate + reduced NAD (animals) -->
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Lactate + NAD
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What happens to lactate after it is produced in AR?
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Either reoxidised to pyruvate or taken to the liver and converted to glycogen
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Where does substrate-level phosphorylation take place? What is it exactly?
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Glycolysis and Krebs cycle. SL Phosphorylation is the DIRECT linking of an inorganic phosphate to ADP to produce ATP
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Where does oxidative level phosphorylation take place? What is it exactly?
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In the ETC. This is the indirect linking of an inorganic phosphate to ADP to produce ATP using hydrogen atoms from glycolysis and the Krebs cycle that are carried on NAD and FAD, cells produce most of their ATP in this way
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