It is a part of the metabolic process that converts sugar, fat, and protein into cellular energy.

The movement of substances across the membrane can be either passive, occurring without the input of cellular energy, or active, requiring energy.

The unequal distribution of ions represents a steady state (and not an equilibrium) as it requires the continual expenditure of cellular energy.

Active transport uses cellular energy, unlike passive transport, which does not use cellular energy.

ATP is a major source of cellular energy.

This process requires cellular energy, distracting the body from normal activities like making glucose for the brain.

The second response will prolong survival as they will be able to generate enough cellular energy to maintain a suppressed metabolic rate.

These enzymes in turn produce cellular energy and regulate nerve transmission, blood clotting, and oxygen transport.

Passive transport - Movement of molecules into and out of cells without the input of cellular energy.

Active transport - Movement of molecules into and out of cells with the input of cellular energy.