Starch undergoes hyrolysis in the presence of a dilute mineral acid to give the ultimate product

Options

A. D-fructose
B. L-glucose
C. D-glucose
D. L-fructose

Answer

C

Explanation

Starch and cellulose are two ubiquitous plant polysaccharides consisting of only D- glucose units. Upon treatment with acid or under the influence of enzymes, starch as well as cellulose are hydrolyzed finally to `D - (+) -` glucose.
Cellulose differs from starch in having `beta- 1 , 4-` glucosidic linkages and not `alpha`. The chains are mainly linear with little branching. Cellulose has more glucose unit giving it a higher molecular mass.