Question
Which of the following molecules enters the citric acid cycle, after being broken down to acetyl CoA?
Answer: Option D
:
D
When carbohydrates are not available, other substrates are used for respiration. Proteins are broken down to amino acids and the amino acids can be used for respiration. Some amino acids enter the oxidative phosphorylation pathway as acetyl CoA, while others form pyruvate, oxaloacetate, alpha-ketoglutarate etc. Fatty acids basically enter citric acid cycle as acetyl CoA.
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:
D
When carbohydrates are not available, other substrates are used for respiration. Proteins are broken down to amino acids and the amino acids can be used for respiration. Some amino acids enter the oxidative phosphorylation pathway as acetyl CoA, while others form pyruvate, oxaloacetate, alpha-ketoglutarate etc. Fatty acids basically enter citric acid cycle as acetyl CoA.
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