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Question

The only plant cells without nucleus among the following are

A
Cambium cells
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B
Xylem vessels elements
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C
Root hairs
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D
Companion cells
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Solution

The correct option is B Xylem vessels elements
There are many parts of plant which do not contain nucleus:
  • Sclerenchymatous cells get deposited by lignin and lose nucleus & cytoplasm at maturity.
  • Xylem vessels consist of series of elongated dead cells for quick conduction of water and salts.
  • Sieve tubes which also conduct food, don't have nucleus in them.
  • Dead cork cells which replace the epidermis in woody plants.
So, the correct answer is 'Xylem vessels elements.'

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