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Several. Among them are glycolysis, the TCA cycle and oxidative phosphorylation.
phosphorylation.
Glucose metabolism begins with glycolysis and then proceeds to either the TCA (Krebs) cycle or fermentation. Glycolysis and fermentation are both anaerobic processes (they do not use oxygen) and use substrate level phosphorylation to produce ATP (e.g. energy), while the TCA cycle is aerobic (requires oxygen) and uses oxidative phosphorylation to produce ATP. Substrate level phosphorylation produces much less ATP than oxidative phosphorylation.
It already is an energy source.It already is an energy source.It already is an energy source.It already is an energy source.
no its a renewable source of energy
Oxidative phosphorylation is ATP synthesis driven by electron transfer to oxygen and photophosphorylation is ATP synthesis driven by light. Oxidative phosphorylation is the culmination of energy-yielding metabolism in aerobic organisms and photophosphorylation is the means by which photosynthetic organisms capture the energy of sunlight, the ultimate source of energy in the biosphere.
Electron transport chain and oxidative phosphorylation
Adenosine triphosphate, or ATP, is the most common source of energy in cells, and is created through phosphorylation. This can be photophosphorylation (as occurs in photosynthesis) or substrate level phosphorylation, or oxidative phosphorylation. ATP is created by adding a phosphate group to ADP (adenosine diphosphate), so the answer to your question would be that the energy is used to phosphorylate ADP, turning it into ATP.
The opposite of phosphorylation is dephosphorylation. Source: http://en.wikipedia.org/wiki/Dephosphorylation
Both processes are run inside the human body in order to produce energy. Oxidative phosphorylation produces much more energy at a less of an expense than anaerobic glycolysis. It also has energy coming from multiple sources unlike anaerobic glycolysis which only comes from one source.
the proton-motive force across the inner mitochondrial membrane.
Most probably it is the substrate-level phosphorylation.
Most of the energy comes from the electron transport chain by oxidative phosphorylation. However there is energy produced in the Krebs cycle and Glycolysis this is called substrate level phosphorylation.
Sources of ATP include the phosphorylation of ADP by creatine phosphate, anaerobic glycolysis, and oxidative phosphorylation of ADP n the mitochondria.
The first step
In chemiosmosis through oxydative phosphorylation.
ATP adds chemical energy to the Calvin-Benson cycle.