BIOMOLECULES AND ENZYMES

BIOLOGY

DISACCHARIDES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is a polysaccharide?
A
a long chain of proteins
B
many disaccharides linked together
C
many monosaccharides linked together
D
None of the above
Explanation: 

Detailed explanation-1: -Polysaccharides are complex carbohydrate polymers consisting of more than two monosaccharides linked together covalently by glycosidic linkages in a condensation reaction. Being comparatively large macromolecules, polysaccharides are most often insoluble in water.

Detailed explanation-2: -The monosaccharides in oligo-and polysaccharides are linked by acetal or ketal bonds, called glycosidic bonds in carbohydrate chemistry. These bonds link the aldehyde or ketone site of one monosaccharide and a hydroxyl group of another monosaccharide.

Detailed explanation-3: -Two monosaccharide units can be joined together by a glycosidic bond-this is the fundamental linkage among the monosaccharide building blocks found in all oligosaccharides. The glycosidic bond is formed between the anomeric carbon of one monosaccharide and a hydroxyl group of another.

Detailed explanation-4: -Polysaccharides are major classes of biomolecules. They are long chains of carbohydrate molecules, composed of several smaller monosaccharides.

Detailed explanation-5: -Polysaccharide-Polysaccharide includes starch, glycogen, and cellulose. Monosaccharide. Monosaccharide is the simplest carbohydrates; they conform to the general chemical formula (CH2O)x and are termed simple sugars.

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