Question

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Answer 1

Biology - Tissues

Answer:

Part 1 marked in the picture is a sieve plate.

Part 2 marked in the picture is sieve tube.

Part 3 marked in the picture is phloem parenchyma.

Part 4 marked in the picture is companion cell.

Explanation:

The following picture is the section of a phloem tissue which constitutes the vascular bundle in plants.

Know more:

⩨ Phloem is a complex permanent tissue.

⩨ Sieve tubes have holes in them, that is, their are perforated.

⩨ All other parts of the phloem except the phloem fibres are non-living.

⩨ The main function of the phloem tissue is to transport the prepared food by the leaves to all parts of the plant.

⩨ Phloem as a whole is a living tissue.