Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

The NaCl concentration in physiological saline solutions is 0.9%. If animal cell

ID: 64661 • Letter: T

Question

The NaCl concentration in physiological saline solutions is 0.9%. If animal cells are transferred from physiological saline to a solution of 10% NaCl, which of the following will happen (choose all that apply)?

Question 2 options:

A) Initially, the number of water molecules moving out of the cell will exceed the number moving into the cell; at equilibrium, the numbers of molecules moving in and out will be equal.

B) Initially, the number of water molecules moving into the cell will exceed the number moving out of the cell; at equilibrium, the numbers of molecules moving in and out will be equal.

C) Initially, the number of water molecules moving into the cell will equal the number moving out of the cell; at equilibrium, the numbers of molecules moving in and out will be equal.

D) The cells will shrink.

E) The cells will swell.

Explanation / Answer

Answer:

A) Initially, the number of water molecules moving out of the cell will exceed the number moving into the cell; at equilibrium, the numbers of molecules moving in and out will be equal.

D) The cells will shrink.