A species of fish that lives in the ocean has cells with a lower solute concentration than the surrounding ocean waters.To maintain cell homeostasis under these conditions, these fish
A) take in large quantities of salt.
B) use facilitated diffusion.
C) produce large volumes of urine.
D) use simple diffusion.
E) use active transport.

Question

Quizplus · Accepted Answer

The fish needs to maintain a lower solute concentration in its cells than in the surrounding ocean water. This means that the fish needs to move solutes (like salt) out of its cells and into the surrounding water. This requires energy, so passive transport (like simple diffusion or facilitated diffusion) is not enough. Active transport is required to move solutes against their concentration gradient, so the fish must use active transport to maintain homeostasis.

A Species of Fish That Lives in the Ocean Has