Which of the following is an example of a concentration gradient?
A) Ions flowing through a barrier with selective permeability.
B) Ions flowing from to an area with an opposite electrical charge.
C) Ions flowing from an area of high concentration to low concentration.
D) Ions increasing in concentration in a graded manner.

Question

Quizplus · Accepted Answer

A concentration gradient refers to the movement of particles from an area of high concentration to an area of low concentration. Therefore, option C, where ions are flowing from an area of high concentration to low concentration, is the best choice. Option A refers to selective permeability, which does not directly relate to concentration. Option B refers to electrical charge rather than concentration. Option D describes a gradient but does not indicate the direction or concentration of particles.

Which of the Following Is an Example of a Concentration