USMLE- BIOCHEMISTRY- EXAM 3 | WITH 100% CORRECT ANSWERS | LATEST UPDATE | GRADED A+
1 Q 2. Identify the metabolite that does NOT serve as a precursor of a dietarily essential amino acid: A. Alpha-ketoglutarate B. 3-phosphoglycerate C. Glutamate D. Aspartate E. Histamine A E. Histamine Histamine is a catabolite, not a precursor, of histidine. 2 Q 4. Select the CORRECT answer: The first reaction in the degradation of most of the protein amino acids involves the participation of: A. NAD+ B. Thiamine pyrophosphate (TPP) C. Pyridoxal phosphate D. FAD E. NAD+ and TPP A C. Pyridoxal phosphate Pyridoxal-dependent transamination is the first reaction in degradation of all the common amino acids except threonine, lysine, proline, and hydroxyproline.
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usmle biochemistry exam 3 with 100 correct a
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