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  • Which cell does not have perforated cell wall? (a) Tracheids (b) Companion cells (c) Sieve tubes (d) Vessels

Which cell does not have perforated cell wall?
(a) Tracheids
(b) Companion cells
(c) Sieve tubes
(d) Vessels

Answers (1)

Answer- (a)
Solution- Tracheids and vessels are present in the xylem and help in the water conduction.
These are tube-like structures with partially or completely dissolved walls to form water pipes (in vessels) and pits in the cell wall (in tracheids) for water conduction. Companion cells possess a perforated cell wall. 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.

They are present in the phloem and are the main food conducting elements.
The correct option is- (a)- Tracheids

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