NBCE Biochemistry Questions AND ANSWERS

Which pair of enzymes listed below is unique to gluconeogensis? A. Pyruvate kinase and pyruvate carboxylase B. Phosphoenolpyruvate carboxykinase and pyruvate carboxylase C. Fructose bisphosphatase and phosphofructokinase D. Pyruvate dehydrogenase and glucose 6-phosphatase CORRECT ANSWERS: B. Phosphoenolpyruvate carboxykinase and pyruvate carboxylase Which 2 polysaccharides contain the same types of bonds? A. Cellulose and amylose B. Amylopectin and glycogen C. Glycogen and cellulose D. Amylose and amylopectin CORRECT ANSWERS: B. Amylopectin and glycogen Which glycolytic enzyme catalyzes a substrate-level phosphorylation? A. Glucokinase B. Phosphofructokinase C. Phosphoglycerate kinase D. Hexokinase CORRECT ANSWERS: C. Phosphoglycerate kinase An example of a food that is an excellent source of soluble fiber is: A. Wheat bran cereal B. Brown rice C. Whole wheat bread D. Oatmeal CORRECT ANSWERS: D. Oatmeal Which polysaccharide has the highest proportion of alpha-1,4 glycosidic linkages? A. Starch B. Amylopectin C. Glycogen D. Amylose CORRECT ANSWERS: D. Amylose Which sugar has a C-2 carbonyl carbon? A. Fructose B. Galactose C. Glucose D. Mannose CORRECT ANSWERS: A. Fructose Which molecule is not essential for the complete degradation of glycogen in muscle and liver? A. Inorganic phosphate B. Glycogen phosphorylase C. Glycogenin D. Glycogen debranching enzyme CORRECT ANSWERS: C. Glycogenin Which glucose transporter is saturated or close to satura