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Question: 21. Conversion of an% anomer to a is termed c. mutarotation d. rotation 22. Sorbitol, a sugar alc…


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21. Conversion of an% anomer to a is termed c. mutarotation d. rotation 22. Sorbitol, a sugar alcohol, is a non-nutritive sweetener. The most likely explanation for the non- nutritive nature of this molecule is: a. It has an incorrect stereochemistry b. The enzymes involved in metabolizing the parent monosaccharide do not recognize this inhibitor toward the enzymes that metabolize the molecule as a substrate. The sugar alcohol acts as an uncompetitive parent monosaccharide. e. d. Metabolic products of sugar alcohols are toxic. e. The acid-base properties of this molecule render it insoluble in physiologica 23. The conversion of a monosaccharide to a sugar alcohol is which of the following reaction types a. condensation b. hydrolysis c. reduction d. oxidation 24. The molecule depicted below is он H2 H2 H2 H2 H2 H2 H H2 a. Palmitoleate b. Oleate c. Sphingosine d. Linoleate e. Linolenate 25. An integral membrane protein was isolated, characterized, and found to contain four hydrophobic a- helical segments of about 20 amino acids as well as N and O linked carbohydrates near the N terminal. From this data which statement is FALSE. a. This protein may interact with the proteins and/or proteoglycans of the extracellular matrix. b. The amino terminal and carboxyl terminal of the protein are on the external surface of the cell. c. The carboxyl terminal of the protein may interact with components of the cytoskeleton. d. The carbohydrate part of the protein contributes to the glycocalyx of the cell. e. All of the above statements are true. 26. In one catalytic cycle, the Na/K primary transporter moves: a. 2 Na out, 3 K* in, and converts 1 ATP to ADP +P b. 3 Na out, 2 K in, and converts 1 ATP to ADP +P. c. 3 Na in, 2 K+ out, and converts 1 ATP to ADP+P d. 1 Na out, 1 K in, and converts 1 ATP to ADP +Pi e. 2 Na out, 3 K in, and converts 1 ADP+Pi to ATP Starch and glycogen are both polymers of a. fructose. c. sucrose. e. B-D-glucose. b. glucose1-phosphate. d. a-D-glucose

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21. Conversion of an% anomer to a is termed c. mutarotation d. rotation 22. Sorbitol, a sugar alcohol, is a non-nutritive sweetener. The most likely explanation for the non- nutritive nature of this molecule is: a. It has an incorrect stereochemistry b. The enzymes involved in metabolizing the parent monosaccharide do not recognize this inhibitor toward the enzymes that metabolize the molecule as a substrate. The sugar alcohol acts as an uncompetitive parent monosaccharide. e. d. Metabolic products of sugar alcohols are toxic. e. The acid-base properties of this molecule render it insoluble in physiologica 23. The conversion of a monosaccharide to a sugar alcohol is which of the following reaction types a. condensation b. hydrolysis c. reduction d. oxidation 24. The molecule depicted below is он H2 H2 H2 H2 H2 H2 H H2 a. Palmitoleate b. Oleate c. Sphingosine d. Linoleate e. Linolenate 25. An integral membrane protein was isolated, characterized, and found to contain four hydrophobic a- helical segments of about 20 amino acids as well as N and O linked carbohydrates near the N terminal. From this data which statement is FALSE. a. This protein may interact with the proteins and/or proteoglycans of the extracellular matrix. b. The amino terminal and carboxyl terminal of the protein are on the external surface of the cell. c. The carboxyl terminal of the protein may interact with components of the cytoskeleton. d. The carbohydrate part of the protein contributes to the glycocalyx of the cell. e. All of the above statements are true. 26. In one catalytic cycle, the Na/K primary transporter moves: a. 2 Na out, 3 K* in, and converts 1 ATP to ADP +P b. 3 Na out, 2 K in, and converts 1 ATP to ADP +P. c. 3 Na in, 2 K+ out, and converts 1 ATP to ADP+P d. 1 Na out, 1 K in, and converts 1 ATP to ADP +Pi e. 2 Na out, 3 K in, and converts 1 ADP+Pi to ATP Starch and glycogen are both polymers of a. fructose. c. sucrose. e. B-D-glucose. b. glucose1-phosphate. d. a-D-glucose

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