HUMAN NUTRITION

NUTRITION

CARBOHYDRATES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Starches with a branched structure are called ____
A
amylopectin
B
granules
C
polymers
D
amylose
Explanation: 

Detailed explanation-1: -Amylopectin, a polysaccharide, has a branched structure with mostly short chains of 1, 4-linked anhydroglucose units (as present in ►Amylose ) and 4%–5% branch points with 1, 6 linkages occurring periodically at approx. every 20–30 anhydroglucose units. It is one of the two major components of ►Starch.

Detailed explanation-2: -Starch consists of amylose and amylopectin. The primary constituent amylopectin has an orderly branched structure and its structure has an effect on the taste and physicochemical properties of starch.

Detailed explanation-3: -Amylopectin is highly branched, being formed of 2, 000 to 200, 000 glucose units. Its inner chains are formed of 20–24 glucose subunits.

Detailed explanation-4: -Starch contains two glucose polymer components – amylopectin and amylose. Both polymers have -1, 4-linked linear chains and -1, 6-linked branch points.

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