Louis Pasteur’s experiments has taken a leap on cell biology. He was able to contribute to the concept of cell theory which suggests that cells came from pre-existing cells, cells are the fundamental unit of life and that all life have cells.
Highlighting on pre-existing cells, early before the experiments of Pasteur, there was the theory of spontaneous generation. This theory claims that organisms came from nonliving objects which is now, truly misleading and wrong.
The cell theory teaches that all living things are composed of one or more cells; the cell is the basic unit of life.
Cellular Respiration is the making of energy in the mitochondria. Photosynthesis is the production of oxygen in the chloroplasts. Their reactants are the products of each other.