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Biochemistry Preguntas

Explora preguntas en el Biochemistry categoría sobre la que puedes preguntar a Spark.E!

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?

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