BIOMOLECULES AND ENZYMES

BIOLOGY

CARBOHYDRATES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What polysaccharide is found in grain products and contains large amounts of energy?
A
Starch
B
Glycogen
C
Sucrose
D
Cellulose
Explanation: 

Detailed explanation-1: -Starch is a mixture of two glucose polymers: amylose, which comprises (1→4) -linked chains of up to several thousand glucose units and amylopectin which is highly branched (with (1→6) -linkages as well as (1→4) -linkages) and may comprise over 100, 000 glucose residues.

Detailed explanation-2: -Glycogen: This polysaccharide is the polysaccharide found in animals to store energy and is composed of alpha-1, 4-glycosidic bonds with branched alpha-1, 6 bonds present at about every tenth monomer. It is mainly produced by the liver and muscles, but it can also be made during a process called glycogenesis.

Detailed explanation-3: -One of the best known polysaccharides is starch, the main form of energy storage in plants. Starch is a staple in most human diets. Foods such as corn, potatoes, rice, and wheat have high starch contents. Starch is made of glucose monomers and occurs in both straight-chain and branched forms.

There is 1 question to complete.