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Chapter 9

Question:

Carbon skeletons for amino acid biosynthesis are supplied by intermediates of the citric acid cycle. Which intermediate would supply the carbon skeleton for synthesis of a five-carbon amino acid?
a. succinate
b. malate
c. citrate
d. a-ketoglutarate
e. isocitrate

Answer:

D: a-ketoglutarate
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Last update by mayurcooled on 04/16/2014
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Chapter 9
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Question: Carbon skeletons for amino acid biosynthesis are supplied by intermediates of the citric acid cycle. Which intermediate would supply the carbon skeleton for synthesis of a five-carbon amino acid?a. succinateb. malatec. citrated. a-ketoglutaratee. isocitrate
Answer: D: a-ketoglutarate