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What is cellular respiration and what are its three stages?
Cellular respiration is the complete cycle and usage of a glucose molecule using oxygen.
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User: What is cellular respiration and what are its three stages?

Weegy: Cellular respiration is the complete cycle and usage of a glucose molecule using oxygen.
AngelInDisguise|Points 5101|

User: What is cellular respiration three stages

User: What is the role of glycolysis? Include the reactants and the products. Where does it occur?

User: What is the role of glycolysis?

User: What is the role of glycolysis? Include the reactants and the products.





Weegy: Glycolysis is a metabolic pathway that is found in the cytoplasm of cells in all living organisms and does not require oxygen. [ The process converts one molecule of glucose into two molecules of pyruvate, and makes energy in the form of two net molecules of ATP. Four molecules of ATP per glucose are actually produced; however, two are consumed for the preparatory phase. The initial phosphorylation of glucose is required to destabilize the molecule for cleavage into two triose sugars. During the pay-off phase of glycolysis, four phosphate groups are transferred to ADP by substrate-level phosphorylation to make four ATP, and two NADH are produced when the triose sugars are oxidized. Glycolysis takes place in the cytoplasm of the cell. The overall reaction can be expressed this way: Glucose + 2 NAD+ + 2 Pi + 2 ADP ? 2 pyruvate + 2 NADH + 2 ATP + 2 H2O Krebs cycle) is a series of enzyme-catalysed chemical reactions of central importance in all living cells that use oxygen as part of cellular respiration. In eukaryotes, the citric acid cycle occurs in the matrix of the mitochondrion. The components and reactions of the citric acid cycle were established by seminal work from both Albert Szent-Györgyi and Hans Krebs. In aerobic organisms, the citric acid cycle is part of a metabolic pathway involved in the chemical conversion of carbohydrates, fats and proteins into carbon dioxide and water to generate a form of usable energy. Other relevant reactions in the pathway include those in glycolysis and pyruvate oxidation before the citric acid cycle, and oxidative phosphorylation after it. In addition, it provides precursors for many compounds including some amino acids and is therefore functional even in cells performing fermentation. For the whole cycle DIAGRAM, ]
Expert answered|scijoe21|Points 975|



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Asked 5/3/2012 9:07:43 PM
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