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Cellulose, the primary component of plant cell walls, is composed of glucose molecules joined together through specific glycosidic bonds. Choose the option that accurately describes the structure of cellulose.


 

Option: 1

Cellulose consists of a straight chain of glucose molecules connected by β-1,4 glycosidic bonds, with branching occurring at specific sites through α-1,6 glycosidic bonds.


Option: 2

Cellulose is composed of an unbranched chain of glucose molecules linked by β-1,4 glycosidic bonds.


Option: 3

Cellulose comprises a branched chain of glucose molecules connected by α-1,6 glycosidic bonds at the branching sites.

 


Option: 4

Cellulose is made up of an unbranched chain of glucose molecules linked by α-1,4 glycosidic bonds.


Answers (1)

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Cellulose is a polysaccharide made up of repeating units of glucose molecules. These glucose units are connected by β-1,4 glycosidic bonds, which means that the glucose molecules are linked together in a linear, unbranched chain.While cellulose is an important constituent of plant cell walls, it does not contain branching or α-1,6 glycosidic bonds. Instead, it forms a long, straight chain through the β-1,4 glycosidic bonds.

Therefore, option 2 correctly describes the structure of cellulose as an unbranched chain of glucose molecules linked by β-1,4 glycosidic bonds.

 

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manish painkra

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