Which statement correctly describes a trout that lives in fresh water?
A) The external environment is hypertonic with respect to the trout's cells, so the trout must protect itself from water moving into cells from the outside.
B) The external environment is hypotonic with respect to the trout's cells, so the trout must protect itself from water moving out of its cells to the outside.
C) The external environment is hypertonic with respect to the trout's cells, so the trout must protect itself from water moving out of its cells to the outside.
D) The external environment is hypotonic with respect to the trout's cells, so the trout must protect itself from water moving into cells from the outside.
E) The external environment is isotonic with respect to the trout's cells, so the trout must protect itself from water moving back and forth between its cells and the environment.

Question

Quizplus · Accepted Answer

In freshwater, the concentration of solutes is lower than in the trout's cells, making the environment hypotonic with respect to the trout's cells. As a result, water will move into the trout's cells from the environment, which can cause the cells to swell and potentially burst. Therefore, the trout must protect itself from water moving into its cells from the environment.

Which Statement Correctly Describes a Trout That Lives in Fresh