Which monosaccharide serves as the building block for starch?

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Multiple Choice

Which monosaccharide serves as the building block for starch?

Explanation:
Starch is a plant storage polysaccharide built from many glucose units joined together. The monomer that forms starch is glucose, specifically α-D-glucose, linked mainly by α-1,4 glycosidic bonds (with some α-1,6 branches in amylopectin). Fructose and galactose are other monosaccharides used in different carbohydrates, and ribose is a five-carbon sugar found in RNA and some cofactors, not in starch. So glucose is the building block for starch.

Starch is a plant storage polysaccharide built from many glucose units joined together. The monomer that forms starch is glucose, specifically α-D-glucose, linked mainly by α-1,4 glycosidic bonds (with some α-1,6 branches in amylopectin). Fructose and galactose are other monosaccharides used in different carbohydrates, and ribose is a five-carbon sugar found in RNA and some cofactors, not in starch. So glucose is the building block for starch.

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