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Question

The dead element present in the phloem is ___.

A
companion cell
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B
phloem fibre
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C
phloem parenchyma
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D
sieve tube
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Solution

The correct option is B phloem fibre
Phloem consists of four elements: Sieve tubes, companion cells, phloem parenchyma and phloem fibres. Except for phloem fibres, all other elements are living. Phloem fibres are thick-walled, elongated spindle-shaped dead cells which possess narrow lumen. They provide mechanical support to the plant.

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