Question

what are companion cells

Answer 1

Companion cell is a living cell found within the phloem of angiosperm, Each companion cell is usually closely associated with a sieve tube cell.companion cells take part in the loading and unloading of sucrose into sieve elements.

Answer 2

They are the type of cells found within the phloem of flowering plants.....
Its function is uncertain, through it appears to regulate the activity of the adjacent sieve element and to take part in loading and uploading sugar into sieve elements..

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