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Assertion : The exoskeleton of arthropod...

Assertion : The exoskeleton of arthropods is made up of complex polysaccharide called chitin.
Reason : Plant cell walls are made of cellulose.

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B
Polysaccharide are complex carbohydrates which are formed by polymerisationof large number of monosaccharide monomers. Exoskeletons of arthropods, contain a complex polysaccharide called chitin. These complex polysaccharides are heteropolymers. Plant cell walls are made up of cellulose. Paper made from plant pulp and cotton fibre is cellulosic. Cellulose is homopolysaccharide.
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