practic final

practic final - 1. Acetoacetate is a ketone body. The...

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1. Acetoacetate is a ketone body. The function that acetoacetate serves in metabolism is that it is: A. The precursor of HMG-CoA in synthesis of cholesterol. B. The acceptor of amino groups from amino acids in protein catabolism. C. Molecule that transports acetyl-CoA from the liver to other tissues in times of energy demand in those other tissues. D. Molecule that transports lactate from muscles for conversion to glucose in the liver. E. None of the above. Answer: C 2. Which of the following amino acids are essential (cannot be biosynthesized by mammals): A. Alanine B. Phenylalanine C. Aspartate D. Glutamate E. None of the above Answer: B 3. Which enzyme(s), in nucleotide biosynthesis pathways, uses a substrate channeling mechanism? A) aspartate transcarbamylase B) nucleoside monophosphate kinase C) glutamine phosphoribosyl amidotransferase D) a and b E) a and c Answer: C 4. What factors regulate fatty acid metabolic pathways? Answer:
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practic final - 1. Acetoacetate is a ketone body. The...

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