Active transport is the proteinmediated movement of substanc

Active transport is the protein-mediated movement of substances toward thermodynamic equilibrium coupled to ATP synthesis against a concentration gradient in response to membrane potential

Solution

Answer is C

From low to high concentration is called as against the concentration gradient and it requires energy.

Hence it is ATP consuming process and not synthesizing.

Also it is in response to concentration gradient and not membrane potential.

Gradient means difference in concentrations.