BIOMOLECULES AND ENZYMES

BIOLOGY

PROTEINS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Unbranched starch in helix form
A
Amylopectin
B
Glycogen
C
Amylose
D
Cellulose
Explanation: 

Detailed explanation-1: -Amylose is an unbranched version of starch that only contains alpha-1, 4-glycosidic bonds . Amylopectin is the branched version of starch; it contains both the alpha-1, 4-glycosidic bond and the alpha-1, 6-glycosidic bond.

Detailed explanation-2: -Because of its tightly packed helical structure, amylose is more resistant to digestion than other starch molecules and is therefore an important form of resistant starch.

Detailed explanation-3: -Experimental studies have shown that amylose chains make helical structures in single and double-stranded polymorphs.

Detailed explanation-4: -Amylose typically forms a left-handed -helical structure, in which six to eight anhydroglucose units make up one turn of the helix. The molecular weight (MW) of amylose is around 0.15–0.4 × 10.

Detailed explanation-5: -Amylose is an unbranched linear molecule polymer composed of -1, 4-d-glucose units linked by -d-(1–4) linkages.

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