UNE Medical Biochemistry Unit 4 Questions & Answers

UNE Medical Biochemistry Unit 4 Questions & Answers Which of the following statements is consistent with nitrogen transport in the fasted state? Glutaminase will be inactive The urea cycle will be active Hepatic glutamate dehydrogenase will primarily produce glutamate Transport of alanine from skeletal muscle will be reduced The urea cycle will be active Which of the following enzymes is likely to be active in both the fed and fasted states? Glycogen synthase Pyruvate kinase Hormone sensitive lipase Glutaminase Glutaminase Which of the following enzymes is the regulatory step in the urea cycle? Carbamoyl phosphate synthetase I (CPS I) Argininosuccinate lyase Ornithine transcarbamoylase Arginase Carbamoyl phosphate synthetase I (CPS I) A comatose infant is brought to the ER. In the course of the examination, plasma ammonia was found to be elevated 20-fold over normal values. Urine orotic acid and uracil were both greater than normal. A defect of which of the following enzymes is the most likely diagnosis? Phosphoribosyl pyr