Question

How does transpiration helps in upward transport of substance​

Answer 1

Answer:

Transpiration helps in upward transport of substances in plants by drawing water up from the roots. During transpiration water evaporates through pores in the leaves called stomata. This creates a negative pressure in the leave that helps to move water up from the roots through the xylem

Explanation:

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Answer 2

Answer:

transpiration creates defeciency of water in the upward part of plant and hence to recap in the drop the drop in pressure the substance moves upward