Chapter 15-16 Online Questions

Chapter 15-16 Online Questions - Chapter 15 1 The pathway...

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Chapter 15 1) The pathway of conversion of glucose to glycogen is called A. glycolysis. B. glycogenesis. C. glycogenolysis. D. gluconeogenesis. 2) Glycogen phosphorylase, which is involved in the breakdown of glycogen, catalyzes A. cleavage of (α 1 → 6) glycosidic linkages. B. a hydrolysis reaction. C. the removal of glucose residues from the reducing end. D. the attack on a glycosidic bond by inorganic phosphate. 3) Skeletal muscle does not contribute glucose to the blood because A. it lacks the enzyme glycogen phophorylase. B. it cannot store glycogen. C. it lacks the enzyme glucose 6-phosphatase. D. it lacks the enzyme phosphoglucomutase. 4) The liver enzyme glucose 6-phosphatase is normally compartmentalized in the lumen of the endoplasmic reticulum (ER) because A. glucose 6-phosphatase is an enzyme of the glycolysis pathway, which occurs in the ER. B. glucose 6-phosphatase would inhibit glycolytic enzymes if it were localized in the cytosol. C. glucose 6-phosphatase would remove an intermediate of glycolysis if it were localized in the cytosol. D. glucose 6-phosphatase generates an intermediate of the glycolysis pathway, which occurs in the ER. 5) How is a new glycogen molecule initiated? A. Glycogen synthetase adds the first glucose residue to glycogenin. B. Glycogenin becomes covalently attached to UDP-glucose. C. Glycogenin catalyzes the first glycosidic bond between glucose residues, then dissociates from the disaccharide. D. Glycogenin catalyzes the addition of several initial residues of glucose to itself. 6) Which of the following is true about the structure of glycogen?
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A. Glycogen chains on the outer tier do not have branches. B. Glycogen chains can have only one branch. C. Each chain consists of hundreds of glucose residues. D. Glycogen chains terminate with (α 1 → 6) branches. 7) The AMP-dependent protein kinase (ADPK) will suppress A. glucose transport. B. protein synthesis. C. fatty acid oxidation. D. glycolysis. 8) Which of the following is true about isozymes? A. They have the same amino acid sequence. B.
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This note was uploaded on 01/06/2010 for the course MCDB 310 taught by Professor Walter during the Fall '09 term at University of Michigan.

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Chapter 15-16 Online Questions - Chapter 15 1 The pathway...

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