How does an increase in the NADH/NAD+ ratio affect the activity of pyruvate dehydrogenase?
Answer to relevant QuestionsWould you expect the citric acid cycle to be more or less active when a cell has a high ATP/ADP ratio and a high NADH/NAD+ ratio? Give the reason for your answer. How many enzymes are involved in mammalian pyruvate dehydrogenase? What are their functions? Recall Are electron transport and oxidative phosphorylation the same process? Why or why not? Reflect and apply What are some of the difficulties in determining the exact number of protons pumped across the inner mitochondrial membrane by the respiratory complexes? (a) The major energy storage compound of animals is fats (except in muscles). Why would this be advantageous? (b) Why don’t plants use fats/oils as their major energy storage compound?
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