Question

give the functions of companion cells​

Answer 1

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Each companion cell is usually closely associated with a sieve element. Its function is uncertain, though it appears to regulate the activity of the adjacent sieve element and to take part in loading and unloading sugar into the sieve element. companion cell A type of cell found within the phloem of flowering plants.

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Answer 2

Companion cell is a type of cell found within the phloem of flowering plants. Each companion cell is usually closely associated with a sieve element.

Its function is uncertain, though it appears to regulate the activity of the adjacent sieve element and to take part in loading and unloading sugar into the sieve element.