Overview of Cellular Respiration

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Source: Urry, Lisa A.. Campbell Biology (p. 169). Pearson Education. Kindle Edition.

Overview of Cellular Respiration (Campbell Biology)

During glycolysis, each glucose molecule is broken down into two molecules of pyruvate. In eukaryotic cells, as shown above, the pyruvate enters the mitochondrion. There it is oxidized to acetyl CoA, which will be further oxidized to CO2 in the citric acid cycle. The electron carriers NADH and FADH2 transfer electrons derived from glucose to electron transport chains. During oxidative phosphorylation, electron transport chains convert the chemical energy to a form used for ATP synthesis in the process called chemiosmosis. (During earlier steps of cellular respiration, a few molecules of ATP are synthesized in a process called substrate-level phosphorylation.)

Source:

Urry, Lisa A.. Campbell Biology. Pearson Education. Kindle Edition. https://www.pearson.com/us/higher-education/series/Campbell-Biology-Series/2244849.html

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