Question

the concentration of red molecules outside the cell is higher than the concentration inside the cell. the red molecules cannot penetrate the cell. the cell is inside a ______
options: hypotonic solution, hypertonic solution

Explanation:

A hypertonic solution is one where the concentration of solutes (here, red molecules) outside the cell is higher than inside. Since the red molecules can't enter the cell, and the external solute concentration is higher, this fits the definition of a hypertonic solution. A hypotonic solution would have lower external solute concentration.

Answer:

hypertonic solution