Starch and cellulose are both polysaccharides of glucose. Cellulose differs from

Question

Starch and cellulose are both polysaccharides of glucose. Cellulose differs from starch in that

Select one:

a. cellulose contains glucose molecules connected by a- (14) glycosidic bonds.

b. cellulose contains glucose molecules connected by b- (14) glycosidic bonds.

c. cellulose is more highly branched than starch.

d. cellulose is the energy storage molecule of plants.

Select one:

a. These two structures are not related.

b. Both have four chiral carbons.

c. They are superimposable.

d. They are enantiomers.

Which of the following molecules contain a chiral carbon?

Select one:

Explanation / Answer

Ans 1 b) Cellulose contains glucose molecules connected by b-(1->4) glycosidic bonds.

Starch and cellulose both are the polymers of the glucose. The starch is made up of glucose which are linked by the alpha 1->4 glycosidic lineages whereas in the cellulose , the glucose units are linked together by beta 1->4 glycosidic lineages.

Cellulose is mostly found in plant cell walls. It can be of two forms , hemicellulose or lignin. The two forms of starch are amylose and amylopectin.

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