Identify the correct statement with reference to the diagram given below:
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Water always moves from higher water potential to lower water potential. More solutes reduce water potential, so the region with the least solute concentration has the highest water potential.
Step 1: Understanding Water Potential Water potential (\(\Psi_w\)) is the potential energy of water per unit volume relative to pure water, and it determines the direction of water movement. It is influenced by: - Solute concentration: Higher solute concentration lowers water potential. - Pressure potential: Physical pressure on water increases water potential.
Step 2: Analyzing the Given Diagram - Cell A contains 10\% solute concentration. - Cell B contains less solute than A, meaning higher water potential. - Cell C contains 15\% solute concentration, meaning lower water potential than both A and B. Since water moves from higher to lower water potential, and B has the lowest solute concentration, B has the highest water potential.
Step 3: Identifying the Correct Answer - Option (1) Incorrect → Water moves from higher to lower potential, A does not have the highest potential. - Option (2) Incorrect → Water does not move from C to A, as C has the lowest water potential. - Option (3) Correct → B has the highest water potential because it has the lowest solute concentration. - Option (4) Incorrect → C has the lowest water potential, not the highest.
