Question

what are theconstituents of phloem?
Mention them.​

Answer 1

Answer:

Phloem is made up of four types of elements: sieve tubes, companion cells, phloem fibres and the phloem parenchyma.

Answer 2

Answer:

What Are The Constituents Of Phloem?

Phloem is a living tissue in vascular plants which conducts the soluble organic compounds synthesized during photosynthesis downwards from the leaves.

Listed below are the constituents of phloem:

• Companion cells – it appears to check the activity of the adjacent sieve element and participates in loading and unloading of the sugar into the sieve element 

• Sieve tubes – these elongated living cells, conveys carbohydrates, chiefly sucrose from leaves to roots and fruits

• Phloem fibres – they are commercially useful as they possess great pliability and tensile strength 

• Phloem parenchyma – also known as transfer cells, they are found near the finest branches, ends of sieve tubes in leaf veinlets, functional here in conveying food

Explanation:

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