Which component of starch is linear?

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Multiple Choice

Which component of starch is linear?

Explanation:
Starch contains two glucose polymers, one linear and one branched. The linear component is amylose, made of glucose units linked by α-1,4 glycosidic bonds, which gives a relatively straight chain that can coil into helices. The branched component is amylopectin, with occasional α-1,6 linkages creating branches. Glycogen is a highly branched storage polymer in animals, more extensively branched than amylopectin. Cellulose is a linear polymer too, but it uses β-1,4 linkages and is not a component of starch. So the linear component of starch is amylose.

Starch contains two glucose polymers, one linear and one branched. The linear component is amylose, made of glucose units linked by α-1,4 glycosidic bonds, which gives a relatively straight chain that can coil into helices. The branched component is amylopectin, with occasional α-1,6 linkages creating branches. Glycogen is a highly branched storage polymer in animals, more extensively branched than amylopectin. Cellulose is a linear polymer too, but it uses β-1,4 linkages and is not a component of starch. So the linear component of starch is amylose.

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