41. Heme biosynthesis A) requires the molecules acetate and glycine as the contributors of the N and Catoms. B) is inhib

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41 Heme Biosynthesis A Requires The Molecules Acetate And Glycine As The Contributors Of The N And Catoms B Is Inhib 1 (46.93 KiB) Viewed 173 times

41. Heme biosynthesis A) requires the molecules acetate and glycine as the contributors of the N and Catoms. B) is inhibited in lead poisoning. C) requires enzymes in both the cytosol and mitochondria. D) A and B E) A, B, and C which is synthesized from the precursor 42. A molecule that signals vasodilation is A) B) nitric oxide (NO), arginine nitrous oxide, arginine nitric oxide (NO), citrulline nitrous oxide, citrulline none of the above D) E) 43. A number of compounds, including neurotransmitters, are synthesized from amino acids via decarboxylations. The enzymes catalyzing these steps usually use as a cofactor pyridoxal phosphate B) thiamine pyrophosphate biotin D) cobalamins (vitamin B12] tetrahydrofolate 44. Which enzyme catalyses a reaction via an enzyme-bound adenylated intermediate? A) glutamine synthetase B) argininosuccinate synthetase C) carbamoyl phosphate synthetase I D) Ac-CoA decarboxylase E) arginase 45. The enzyme is critical to regulating nitrogen metabolism. A. proteasome B. transaminase C. glutamine synthetase D. glutamate dehydrogenase E. phenylalanine hydroxylase