- 1. Which of these is a liver enzyme?a. nitrogenaseb. lactose synthasec. dihydrobiopterin reductased. pyruvate decarboxylase
- 1. The urea cycle takes place in the:a. small intestineb. pancreasc. liverd. stomach
- 1. Which of these metabolites is the PRECURSOR of guanylate (GMP) & adenylate (AMP)?a. inosinateb. cytidylatec. uridylated. thymidylate
- 1. This enzyme is mostly found in liver cells:a. aspartate aminotransferaseb. glutamate dehydrogenasec. arginased. glutamine synthetase
- 1. Which amino acid process is pyridoxine-dependent?a. amino transferb. carboxylationc. oxidative deaminationd. methylatione. deamination
- 1. Which these metabolites is the most immediate precursor of urea?a. citrullineb. argininec. aspartated. ornithinee. malate
- 1. Which molecule is the "tag of death" for proteins?a. proteosomeb. cytochrome cc. ubiquitind. PPie. AMP
- 1. Which amino acid process is dependent on vitamin B-6?a. amino transferb. carboxylationc. oxidative deaminationd. deamination
- 1. These amino acids are metabolites of the urea cycle, EXCEPT for:a. glutamateb. citrullinec. aspartated. ornithine
- 1. Which of these molecules is the largest?a. guanineb. cytosinec. uracild. thymine
- What is the rate limiting enzyme of glycogenesis? What is the enzyme's substrate? What is the donor of glucose for glycogenesis?
- 1. This molecule does NOT appear to participate in the removal of amino groups from aspartate:a. pantothenateb. pyridoxinec. glutamate dehydrogenased. niacin
- 1. Which molecule is the "tag of death" for proteins?a. proteosomeb. cytochrome cc. ubiquitind. AMP
- 1. Which of these liver enzymes is MITOCHONDRIAL?a. acetyl-CoA carboxylaseb. glutamine synthetasec. glutaminased. arginase
- 1. Which of these proteins has HYDROLASE activity?a. ubiquitinb. argininosuccinasec. arginased. glutamine synthetase
- 1. These metabolites participate in regulating the urea cycle, EXCEPT for:a. glutamateb. N-acetylglutamatec. arginined. glutamine
- The reducing end of glucose is attached to:
- When glycogen phosphorylase is active, it's:
- Glycogen synthesis is activated when glycogen __________ is inhibited
- Increasing insulin concentrations do what to cAMP and PKA levels?