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a) The carbohydrates cellulose and starch are functionally different due to the ____?

A. Reaction used to join their monosaccharides.
B. Specific monosaccharides used to build them.
C. Arrangement of their monosaccharides.
D. Functional groups contained within their monosaccharides.

b) Why is that the answer?


Sagot :

a) The answer is C. Arrangement of their monosaccharides.

b) The reason for this answer is : The main distinction between starch and cellulose is that starch is a storage polysaccharide with alpha 1,4 links between glucose monomers, whereas cellulose is a structural polysaccharide with beta 1,4 connections between glucose monomers. The primary distinction is that while plants employ cellulose to construct structure, they use starch to store energy. In contrast to cellulose, where each succeeding glucose unit is rotated 180 degrees, starch repeat units are situated in the same direction. Compared to sugar, which is not water soluble, cellulose is thicker. On the other hand, starch may be dissolved in warm water and is less brittle than cellulose. Since mammals absorb starch, cellulose is not suitable for human diet.

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