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Movement of substances in xylem is unidirectional while in phloem it is bidirectional. Explain.
Answers (1)
Ans.
Movement in phloem is active transport, on the other hand, the movement in the xylem is done by means of passive transport, which is why the food in the phloem sap can be transported both upwards and downwards whereas the movement in xylem stays limited.
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