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प्रश्न
Which cell does not have perforated cell wall?
विकल्प
Tracheids
Companion cells
Sieve tubes
Vessels
उत्तर
Companion cells
Explanation -
Companion cells are narrow, elongated, thin-walled, living cells. They lie on the sides of the sieve tubes and are closely associated with them through plasmodesmata. Companion cells do not possess perforated cell walls.
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