the mitochondria is the main source but most of them provide energy also. hope this answers your question.
The energy source is the chemical energy stored in the cell.
A solar cell is not an energy source, but an energy converter. In the case of solar, the energy source is light, and the solar cell converts it from light energy to electrical energy.
Carbohydrates
A cell's main souce of energy is glucose.
A battery is the electrochemical cell is used as an energy source in a flashlight.
Glucose is a sugar, so yes it is a source of energy.
solar light is the source of energy for a solar light
glucose
A cell's main souce of energy is glucose.
ATP is called the energy source (battery) of the cell.
mitochondria
ATP