Cellulose has ___ beta glycosidic linkage.

C_{1} - C_{4}

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C_{1} - C_{2}

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C_{2} - C_{4}

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C_{2} - C_{5}

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Solution

The correct option is A $C_{1} - C_{4}$
Cellulose is formed only by the $β -$ D-glucose units. These glucose units are linked by $C_{1} - C_{4}$ glycosidic linkage to form the cellulose structure.
$- O H$ group of $C_{1}$ carbon of one glucose and $- O H$ of $C_{4}$ carbon of another gluocse unit combine to form $C_{1} - C_{4}$ beta glycosidic linkage.

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Similar questions

Match the List-I and List-II:

List I (Saccharides)	List II (Formed by)
(A) Sucrose	(i) $β$ -D glucose $C_{1} - C_{4}$ glycosidic linkage
(B) Lactose	(ii) $α$ -D glucose, $β$ -D fructose $C_{1} - C_{2}$ glycosidic linkage
(C) Cellulose	(iii) $β$ -D glucose, $β$ -D galactose $C_{1} - C_{4}$ glycosidic linkage

Q. Which of the following glycosidic linkage is present in cellulose?

Glycogen is a branched chain polymer of $α - D$ glucose units in which chain is formed by C1-C4 glycosidic linkage whereas branching occurs by the formation of C1-C6 glycosidic linkage. Structure of glycogen is similar to .............. .
(a) amylose (b) amylopectin (c) cellulose (d) glucose

Q. Which of the following statement(s) is/are incorrect?
I. Cellulose is a polysaccharide composed of a large number of

β

-D-glucose units.
II.

β

-D-glucose units in cellulose are joined by

β

-glycosidic linkages.
III. Starch is a mixture of amylose and amylopectin.
IV. Amylose is a branched chain polysaccharide.
V. Amylopectin is a linear polysaccharide.

1,4 - β - glycosidic linkages are present in:

I) Starch II) Cellulose
III) Lactose IV) Maltose

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