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4. Write the name of the molecule that is described by each clue. (20 points) Ch

ID: 561029 • Letter: 4

Question

4. Write the name of the molecule that is described by each clue. (20 points) Choose from: cellulose, amylose, amylopectin, glycogen, maltose, isomaltose, cellobiose, isocellubiose, sucrose, sucralose, lactose, lactase, fructose, fructase, glucose, amylase, (alpha 14), (beta 14), (alpha 1 6), (beta 16), (alpha 12), (beta 12) a. Polysaccharide that can adopt sheet-like structures. OH HO b. Dissacharide to the right. OH OH HO c. The linkage shown to the right. HO HO d. A non-branching form of starch. e. A branching form of starch. f. Disaccharide that comprises table sugar. g. Disaccharide building block of cellulose. HO h. The sugar to the right i. The linkage shown on the right. OH j. Long polymer of glucose containing only beta (1-+4) linkages. j. Disaccharide that polymerizes to form amylose.

Explanation / Answer

a. Cellulose: The beta linkage exist in cellulose allows folding the polysaccharide in the sheet-like structure.

b. alpha maltose

c. alpha glycosidic linkage.

d. Amylose

e. Amylopectin

f. alpha-D-Glucose and beta-D-Fructose

g. Cellobiose.

h. Isomaltose.

i. (alpha1-6)-glycosidic linkage

j. Cellulose

j. alpha-maltose

.

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