NUTRITION
CARBOHYDRATES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Fructose is:
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aldose sugar
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ketose sugar
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pentose sugar
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heptose sugar
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Explanation:
Detailed explanation-1: -Fructose. This sugar is a ketohexose, also called levulose because it is strongly levorotatory, with a specific polarized light rotation of −92.4°. It is present as a free compound in ripe fruits, plant tissues, and in honey. When fructose is bound to glucose, it forms sucrose or sugar cane.
Detailed explanation-2: -Fructose is classified as a monosaccharide, the most important ketose sugar, a hexose, and is a reducing sugar.
Detailed explanation-3: -Ketose is a monosaccharide whose carbon skeleton has a ketone group. Only in the presence of reducing sugar, they can isomerize to aldose. They are used in processed food. Examples of ketose are ribulose, fructose, etc.
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