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Translocation

Companion cel...

Question

Companion cells are absent in the phloem of

A

Dicots

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B

Gymnosperms

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C

Monocots

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D

All the above

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Solution

The correct option is C Gymnosperms

The specialized, modified parenchymatous present in the phloem of angiosperms are called Companion cells. These are absent in the phloem of gymnosperms. These are ontogenetically similar with sieve tubes. They regulate the translocation of organic solutes of the sieve tubes.
So, the correct option is ‘Gymnosperm’.

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