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Organelles

Lignified cel...

Question

Lignified cell wall is characteristic feature of

A

Vessels

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B

Sieve cells

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C

Sieve tubes

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D

All of above

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Solution

The correct option is A Vessels
A plant cell may have lignin for strength, eg., woody tissue. Lignin is formed from coniferyl alcohol and coumaryl alcohols and aldehydes through dehydrogenation and polymerisation. Lignin reduces hydration and increases the hardness of wall. Xylem elements like tracheids and vessels characteristically contain lignin.

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