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Steps of cellular respiration - Khan Academy
Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP. The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.
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Monitoring of the cell's energy state through levels of molecules like ATP, ADP, AMP, and NADH is another common feature. The diagram below summarizes the key enzymes we’ve discussed, along with some of their most important regulators.
The citric acid cycle - Khan Academy
Course: Biology archive > Unit 10. Lesson 4: Pyruvate oxidation and the citric acid cycle. Krebs / citric acid cycle. Pyruvate oxidation. The citric acid cycle. Krebs cycle.
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Oxidative phosphorylation produces ATP (energy) in our cells. NADH, a molecule produced during cellular respiration, gets oxidized and releases electrons. These electrons pass through a series of acceptors in the electron transport chain, releasing energy.
The light-dependent reactions - Khan Academy
The ATP and NADPH from the light-dependent reactions are used to make sugars in the next stage of photosynthesis, the Calvin cycle. In another form of the light reactions, called cyclic photophosphorylation, electrons follow a different, circular path …
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Review of photosynthesis, including light-dependent and light-independent reactions, and their significance in cellular energetics.
Overview of cellular respiration (video) | Khan Academy
The Krebs cycle occurs in the mitochondrial matrix, where pyruvate is turned into acetyl-CoA, which then goes through a series of reactions, producing ATP, NADH, and FADH2. Finally, oxidative phosphorylation uses NADH and FADH2 to create a …
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The Calvin cycle, or the light-independent (dark) reactions of photosythesis. Skip to main content. If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
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Glucose's role in cellular respiration is essential, as it provides the building blocks for ultimately creating ATP, the energy currency used by living organisms. The structure of glucose with carbons numbered. Cellular respiration refers to the breakdown of organic molecules into energy.