Question

h₂o (arrows entering plant cell), vacuole, what type of solution allows water to enter the plant cell, options: isotonic solution, hypotonic solution, active transport, hyperton (partial)

Explanation:

To determine the solution that allows water to enter a plant cell, we analyze the concepts of tonicity:

• Isotonic solution: Has equal solute concentration to the cell, so no net water movement.
• Hypotonic solution: Has a lower solute concentration than the plant cell. By osmosis, water moves from the solution (lower solute, higher water potential) into the cell (higher solute, lower water potential) to balance concentrations.
• Active transport: Is a process (not a solution type) that moves substances against concentration gradients, requiring energy, and is not related to net water entry due to tonicity.
• Hypertonic solution (partially visible): Has a higher solute concentration than the cell, so water would leave the cell.

Since the question asks for the solution allowing water to enter the plant cell, the hypotonic solution is correct.

Answer:

B. hypotonic solution