Biochem 1005 Final Already Passed

What amino acid has a nitrogen in its side chain (R-group) and is an intermediate of the urea cycle? {Ans: Arginine}Which of the following enzymes is correctly paired with its activator? Glutaminase: citrate N-acetyl glutamate synthetase ; arginine Arginase ; NADH Carbamoyl phosphate synthetase I; ATP {Ans: N-acetyl glutamate synthetase ; arginine}What is the direct impact of statins on cholesterol metabolism? {Ans: They inhibit 3-hydroxy-3-methyglutaryl (HMG)-CoA reductase, a key regulator of cholesterol synthesis}What is the primary role of bile salts during the digestive process? {Ans: Emulsification of dietary lipids}What amino acid is synthesized by serotonin? {Ans: Tryptophan}A deficiency in cystathionine beta-synthase (transsulfuration pathway) can decrease synthesis of what amino acid? {Ans: Cysteine}