Question

what is osmosis and ascent of sap?​

Answer 1

Ascent of sap is the movement of water and minerals from the roots to the aerial parts of the plant. ... This creates a concentration gradient, which allows the root hair cells to uptake water actively by the process of osmosis while, diffusion helps in movement of minerals and ions into the root.

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Answer 2

Answer:

The ascent of sap in the xylem tissue of plants is the upward movement of water and minerals from the root to the upper part of the plant body. The theory is intended to explain how water can reach the uppermost parts of the tallest trees, where the applicability of the cohesion-tension theory is debatable.

Explanation:

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