ALL living things use the process of cellular respiration to release their stored energy. Cellular respiration is the process by which all the living cells break down stored energy and convert it into energy molecules that can be easily used for further cell processes. In the case of plants, photosynthesis generates the sugar molecules. In case of other living things, the energy is obtained from the food they eat, whether it is plants or other animals. This biochemical energy, stored in the form of glucose, is released by oxidation (in aerobic processes) or fermentation (in anaerobic processes) and we end up with metabolites and adenosine triphosphate (ATP) molecules. These ATP molecules contain weak phosphate bonds that can be easily broken down to release energy required for cell maintenance, growth and other activities.
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