A fuel cell (like a battery) converts chemical energy to electrical energy.
The main difference being in the fuel cell the energy rich chemicals are continually being resupplied, while in a battery the energy rich chemicals were put in when the battery was initially assembled and cannot readily be replaced or resupplied.
The energy change that takes place in a solar cell is known as an electrical change. It converts sunlight's energy into electricity usually using something like a semiconductor.
Aerobic respiration takes place. It generates energy in cell
The mitochondria is the place where energy production takes place.
electrical energy into chemical energy
A permeability change takes place.
Chemical to electrical.
power house of cell. because it provides energy to cell as respiration takes place in it
Contraction
the nucleus is the center of the cell and also the main source of power or as stated in the question energy
Every cell need to respire in order to produce the energy it needs
the micochondria. At the mitochondria respiration takes place.
Catabolism is the process of breaking down molecules into smaller parts to release energy. Catabolism takes place in the mitochondria of the cell.