cellular respiration
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Cellular respiration is the process by which cells break down compounds—both organic ones like glucose and inorganic ones—using enzymes to release the energy stored in them. This energy is essential for all living organisms to power their basic functions, from moving and growing to thinking and reproducing.
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The metabolic pathways inside eukaryotic cells. Aerobic respiration takes place in the mitochondrion where oxygen is reduced into water. Glycolysis provides pyruvate and NADH to fuel the mitochondrial electron transport chain.
Cellular respiration is the process of oxidizing biological fuels using an inorganic electron acceptor, such as oxygen, to drive production of adenosine triphosphate (ATP), which stores chemical energy in a biologically accessible form. Cellular respiration may be described as a set of metabolic reactions and processes that take place in the cells to transfer chemical energy from nutrients to ATP, with the flow of electrons to an electron acceptor, and then release waste products.