Chloroplasts in plant cells use the energy in light to produce sugar.
Mitochondria are the organelles that converts sugar into energy in form of ATP.
Animal cells use forms of sugar to make energy using the organelles called mitochondria.
Photosynthesis uses light energy to produce chemical energy in the form of sugar.
by adding sugar
Muscle cells contain organelles called mitochondria which oxidize sugar in order to produce ATP which is the chemical that provides energy for muscle function.