Question

which type of solution is the middle cell placed in? (image: three beakers. left beaker: net water gain cell swells; middle beaker: net water loss cell shrinks; right beaker: no net loss or gain.) multiple - choice options: robotonic, hypotonic, isotonic, hypertonic.

Explanation:

To determine the solution type for the middle cell, we analyze the cell's behavior: the middle cell loses water and shrinks. In a hypertonic solution, the solute concentration outside the cell is higher than inside, causing water to leave the cell (osmosis), leading to cell shrinkage. A hypotonic solution would cause water gain and cell swelling, and isotonic has no net water movement. "Robotonic" is not a valid term for solution types. So the middle cell is in a hypertonic solution.

Answer:

D. Hypertonic (assuming the options are labeled A: Robotonic, B: Hypotonic, C: Isotonic, D: Hypertonic; if labels differ, the correct option is the one with "Hypertonic" as the text)