Plant roots take water from the soil by which process?

Question

BlackTom AI · Accepted Answer

In this question, the task is to identify the process by which plant roots take up water from the soil.
Option analyzed: osmosis.
Osmosis is the movement of water across a selectively permeable membrane from a region of lower solute concentration (higher water potential) to higher solute concentration (lower water potential). In plant roots, the cells in the root epidermis and cortex are surrounded by soil water and membranes that allow water to move into the root cells by osmosis due to differences in water potential, thus driving water uptake from the soil into the plant.
Since the provided answer options include only one choice, 'osmosis', there are no additional alternatives to evaluate for potential incorrectness in this specific case. The other common water-uptake mechanisms (e.g., active transport of individual ions, bulk flow through xylem sans membrane crossing, or capillary action) do not describe the direct membrane-driven influx of water into root cells from soil as osmosis does, but these concepts are not presented as separate options here.
Therefore, the statement 'osmosis' correctly identifies the process by which plant roots take up water from the soil, aligning with standard plant physiology concepts about water potential and membrane permeability.

AGRI10046_2025_SM2 Week 1 progress quiz

Plant roots take water from the soil by which process?

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