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Question

Collenchyma can be differentiated from parenchyma by

A
Living protoplasm
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B
Pecto-cellulosic deposits at corners
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C
Cellulosic wall
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D
No protoplasm
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Solution

The correct option is B Pecto-cellulosic deposits at corners
In Collenchyma the walls are thickened by high amounts of pectin and hemicellulose. Protein and cellulose are also present. The composition of these alternating layers varies. One layer is rich in cellulose and poor in pectin; the alternate layer is pectin-rich and cellulose-poor.
So, the correct answer is 'Pecto-cellulosic deposits at corners.'

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