Question

difference between trachea and sieve tube

Answer 1

The difference between tracheids and vessels is that vessels have perforations at the end plates which make them a tube-like, long structure while tracheids do not have end plates.

Answer 2

Difference between trachea and sieve tube

Explanation:

• Tracheid : It is a dead cell of the xylem tissue. They have tapering ends and narrow lumen. They are spindle shaped cells that are present in young plants. Tracheids are nonliving cells found in the xylem of the more ancient plant types, seedless vascular plants (ferns, club mosses, and horsetails) and gymnosperms (cedar, pine, and cypress trees).

• Seive tubes :They are the living cell of the phloem tissue. They are a tube like structure which along with the seive plate and seive pores helps in the conduction of food. Sieve tubes are elements of phloem. They are slender, tube-like structures composed of elongated thin-walled cells, placed end to end. The main function of sieve tubes is to transport sugars and nutrients up and down the plant. Sieve tubes consist of sieve elements which are elongated cells, connected to each other via sieve plates to form a continuous tube system that spreads out through the entire plant.

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