Question

Name and give the function of each cell of xylem and phloem

Answer 1

Xylem contains four types of cells, such as xylem parenchyma, xylem fibres, tracheids and vessels.
(1) Xylem parenchyma: store metabolites produced from metabolism of plant. Also help in short distance transport.
(2) Xylem fibres: provide mechanical support. The walls of xylem fibres are lignified and protoplasm is absent.
(3) Xylem tracheids: transport of water and mineral salts.
(4) Xylem vessels: conduction of water and mineral. These cells are dead.
Phloem also contains four types of cells such as phloem parenchyma, phloem fibres, companion cells and sieve tubes.
(1) Phloem parenchyma: transport of nutrients and storage of organic food.
(2) Phloem fibres: they are non-living component of phloem. They provide mechanical support.
(3) Companion cells: provide ATP and nutrients to carry out cellular functions.
(4) Sieve tubes: Transport of carbohydrates especially sucrose.

Answer 2

Answer:

(a) phloem parenchyma: these cells store food.

(b) pholem fibres: provides mechanical support.

(c) campanion cells: helps sieve tubes in the conduction of food material.

(d) sieve tubes: helps to conduct food material prepared in the leaves.

Explanation:

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