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Aerobic Respiration Occurs in 3 Major Stages

Glycolysis - breaks glucose down into 2 molecules of pyruvic acid (a 3-C cmpd). This occurs in the cytoplasm
Krebs Cycle (Citric Acid Cycle) - breaks pyruvic acid down into CO2. Occurs in mitochondria - O2 required
Electron Transport System - transfers e that were removed from Krebs intermediates - Occurs in mitochondria and O2 is used

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14y ago
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9y ago

The first step is Glycolysis which breaks down the glucose. The second step is the Krebs cycle which needs a link reaction to be completed. Lastly the electron transport chain.

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11y ago

glycolysis krebs cyle electron transport system

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Q: What are the 3 major steps in respiration?
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