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Question : Downward flow of organic and even some inorganic solutes takes place from the leaves through the stem by way of

Answer»

phloem by protoplasmic streaming
all parenchymatous CELLS of the stem by DIFFUSION of solute downward
phloem by mass flow of solutes from higher turgor PRESSURE of leaf mesophyll cells ALONG a pressure gradient in phloem cells
phloem by diffusion 

ANSWER :C


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