To obtain energy from proteins, the amino acids are converted to ________.
A
glucose
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B
acetyl-CoA
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C
alcohol
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D
pyruvic acid
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Solution
The correct option is B acetyl-CoA Generally energy is obtained from carbohydrates. In case of insufficient availability of carbohydrates, proteins or lipids can also be used to obtain energy. Proteins that are consumed are digested to form amino acids and these amino acids are converted to acetyl-CoA. This acetyl-CoA is taken to Kreb's cycle to produce carbon dioxide, water and energy.