Question

Which statement best describes the electrochemical gradient for chloride ions in the figure, assuming the chloride concentrations are equal on both sides of the membrane?

Answer 1

Answer;

It favors the movement of chloride ions from the inside to the outside of the cell.

Explanation;

• Electrochemical gradient refers to a gradient of electrochemical potential, normally for ions that can move across a membrane.
• Normally sodium (Na+) and chloride (Cl−) ions are at high concentrations in the extracellular region, and low concentrations in the intracellular regions.
• Assuming the chloride ions are equal on both sides of the membrane the electrochemical gradient for chloride ions favors the movement of chloride ions from the inside to the outside of the cell.