Anatomy of Flowering PlantsHard

Question

At maturity which of the following is enucleate ?

Options

A.Sieve cell
B.Companion cell
C.Palisade cell
D.Cortical cell

Solution

Phloem (complex tissue) is composed of companion cells, phloem parenchyma, phloem fibre and sieve tube cells. Sieve tube cells are cylindrical and tube like structure which are involvved in transport of organic solute. In sieve cells nucleus is evident in the younger stage but disap pears in mature stage.

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