16. What happens when an electrical gradient and a chemical gradient are applying opposite forces to active transport? A. They strengthen each other. B. They triple the strength of each other. C. They negate each other. D. They weaken the power of each gradient by half.

C

Explanation:

This especially applies when the ions responsible for the chemical gradient have charges. The diffusion of the ions will be affected by the electric potential difference across the membrane. While they may want to diffuse freely across the membrane across a concentration gradient, they can only diffuse as far as the charge balance across the membrane allows.

C. They negate each other is the correct answer ig