Basis of differentiation | Photosynthesis | Cellular respiration |
Definition | Photosynthesis is an anabolic process which converts light energy from sunlight into chemical energy | Cellular respiration is a catabolic process that generates ATP from glucose in living organisms |
Occurrence | Occurs solely in the chloroplasts photoautotrophs including algae, plants, and cyanobacteria | Occurs in the mitochondria of all living organism |
Reactants | Carbon dioxide, light energy, and water are the reactants | Glucose and oxygen are the reactants |
Mechanisms | Uses light and dark respiration | Uses glycolysis, TCA cycle, oxidative phosphorylation, and electron transport chain |
Reaction type | Is an endothermic reaction as it requires energy | Is an exergonic reaction as energy is released |
Sunlight | Requires the presence of sunlight | Does not require any sunlight as it is a continuous process |
Oxygen | Oxygen is formed as a byproduct | Oxygen is used as a raw material |