1.

Study the given slide of sclerenchyma plant tissue and answer the following questions : (i) Name the composition of lignin deposited uniformly on its secondary walls. (ii) Name atleast twp plants whose sclerenchyma fibres are commerically exploited.

Answer» (i) Lignin is a complex polymeric molecule composed of phenyl propanoid units associated with cellulose.
(ii) Jute and hemp.


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