What is a characteristic feature of sieve tub | vedclass

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(D) Sieve tubes are long,tube-like structures arranged longitudinally and are associated with companion cells.Their end walls are perforated in a siev

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Porous end walls

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(D) Sieve tubes are long,tube-like structures arranged longitudinally and are associated with companion cells.Their end walls are perforated in a sieve-like manner to form 'sieve plates'.These structures are specialized for the translocation of food materials in plants.Therefore,the presence of porous end walls (sieve plates) is a characteristic feature of sieve tubes.

What is a characteristic feature of sieve tubes?

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