Assertion :Monosaccharides and disaccharides are crystalline and sweet in taste Reason: Polysaccharides are tasteless, amorphous and insoluble in water

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
Sweet tasting carbohydrates are called sugars. Monosaccharides (like glucose and fructose) are made up of one unit of simple sugar whereas disaccharide (like maltose and sucrose) is made up of two units of simple sugars. Generally speaking monosaccharides and disaccharides are sweet in taste. Polysaccharides like starch and glycogen are long polymers of monosaccharide units. Polysaccharides are amorphous and insoluble in water. Because they are insoluble in water they do not alter osmotic balance of the cell storing them.

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