Fuel cells generate lots of low-end torque - the muscle power that rapidly accelerates a vehicle.

Its solar cells generate enough energy to keep it aloft day and night.

Hence, these cells generate the normal sinus rhythm and are called pacemaker cells as they directly control the heart rate.

How epithelial cells generate and maintain polarity remains unclear, but certain molecules have been found to play a key role.

Concentration cells generate electricity from the thermodynamic free energy that can be extracted from the difference in chemical concentrations of reactants, in the same reaction.