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Companion cells are closely accociated w...

Companion cells are closely accociated with
Or
Transport of food material in higher plants takes place through

A

sieve elements

B

vessel elements

C

trichomes

D

guard cells

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The correct Answer is:
a
Companion cells are characterstic elements of phloem tissue associated with the sieve tubes (sieve elements) in the angiosperms. The sieve tubes and companion cells are related ontogenically as they develop from thr same mother cell. The companion cells and sieve tubes maintain close cytoplasmic connections through plasmodesmata.
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