Anatomy of Flowering PlantsHard

Question

In phloem the transport of sugar is bidirectional because :-

Options

A.the leaves and roots both are photosynthetic in plants
B.the source-sink relationship for phloem is variable
C.the location of the phloem in plant body can be changed according to the season
D.the phloem in plants is open at both ends

Solution

NCERT XI Eng. Pg # 190 (2nd last para)

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