NUTRITION
LIPIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A polymer of alpha-D-glucose found in plants has mostly 1, 4 linkages and some 1, 6 linkages. Which molecule fits this description?
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glycogen
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cellulose
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amylose
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amylopectin
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Explanation:
Detailed explanation-1: -Bottom: amylopectin has a branching structure. It is mostly made of glucose molecules connected by 1-4 glycosidic linkages, but has glucose molecules connected by 1-6 linkages at the branch points.
Detailed explanation-2: -Amylopectin is a branched-chain polysaccharide composed of glucose units linked primarily by -1, 4-glycosidic bonds but with occasional -1, 6-glycosidic bonds, which are responsible for the branching.
Detailed explanation-3: -Amylose is a large unbranched molecule made up of glucose molecules joined by 1, 4 glycosidic bonds, while amylopectin has 1, 6 branches as well maintained by alpha 1, 6 glycosidic bonds.
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