NUTRITION
CARBOHYDRATES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What two monosaccharides make up sucrose?
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glucose + galactose
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glucose + fructose
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glucose + glucose
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fructose + maltose
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Explanation:
Detailed explanation-1: -Sucrose is a nonreducing disaccharide of glucose and fructose having a glucosyl -1-fructosyl -2 linkage (Fig. 6.27).
Detailed explanation-2: -The two simplest monosaccharides are glyceraldehyde, an aldotriose, and dihydroxyacetone, a ketotriose. The most nutritionally important monosaccharides are the pentoses (5-carbon atom skeleton), e.g., ribose, and the hexoses (6-carbon atom skeleton), e.g., glucose.
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