Question

When the concentration of the solutes is low, the absorption of water
A. Remains normal
B. Will stop
C. Will increase
D. Will decrease

Answer 1

Hint: The flow of water across macroscopic distances across the plant and soil is guided by hydrostatic pressure gradients. It is guided over microscopic ranges by gradients of water potential.

Complete Answer:
Plant-water interactions are concerned with how plants manage their cells' hydration, through the intake of water from the soil, its transfer inside the plant, and its depletion by leaf evaporation. Plant- water relation is generally shared as 'water potential,' and that has pressure units, is often negative, and the algebraic sum of hydrostatic pressure as well as the osmotic pressure of the water is in simpler form.

Now, let us find the solution from the options-
- Whenever the concentration of soil solutes is poor, relative to cell sap, the soil solution is hypotonic.
- Water often moves from a hypotonic solution to a solution that is hypertonic.
-Therefore, because of the lower concentration of solutes, when the soil solution becomes hypotonic, water passes through the cell owing to the endosmosis mechanism and water absorption is enhanced.

Thus, the correct option is option (C) Will increase.

Note: The evaporation of water from the leaves is largely regulated by stomata, and if the movement of water from the soil via the plant to the leaves does not contribute to the wilting of the plants. The sensitivity to this flow is not yet well known.