Question

Please choose the BEST ANSWER. No cell phones, web or cameras, please. 1. Each of the following enzymes functions in both glycolysis and gluconeogenesis except: A) 3-phosphoglycerate kinase B) aldolase C) enolase D) phosphofructokinase-1 E) phosphohexose isomerase During strenuous exercise, the NADH formed in the glyceraldehyde 3-phosphate dehydrogenase reaction in skeletal muscle must be reoxidized to NAD if glycolysis is to continue. The most important reaction involved in this reoxidation of NADH is: 2. A) dihydroxyacetone phosphate> glycerol 3-phosphate B) glucose 6-phosphate-fructose 6-phosphate C) pyruvatelactate D) isocitrate →α-ketoglutarate E) oxaloacetate malate он 3. The depicted compound is: A) an amino acid B) a substrate of pyruvate kinase C) a product of pyruvate kinase D) a product of pyruvate carboxylase E) a citric acid cycle intermediate 4. Glycogen conversion to monosaccharide units is an example of a: A) phosphomutase reaction B) TPP-dependent hexose transfer C) hydrolysis reaction D) phosphorolysis reaction E) gluconeogenesis reaction 5. The NAD -requirement in galactose utilization occurs in a step in which: A) galactose plus NAD" is converted to glucose plus NADH B) galactose is phosphorylated C) the OH in the 4 position of free galactose is epimerized to form glucose D) the OH in the 4 position of UDP-galactose is epimerized to form UDP-glucose E) galactose-1-phosphate is converted to UDP-galactose

Answer 1

Answer 2

correct is 1. a 3. c