What are the constituents of phloem?
Phloem is a conducting or vascular tissue of the plant that transports food from the leaves to other parts of the plant. Phloem is made up of four types of elements:
(i) sieve tubes (ii) companion cells (iii) phloem fibres and (iv) phloem parenchyma.
Out of these four, only phloem fibres are dead cells.
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