Carbon dioxide (co2 is released during which of the following stages of cellular respiration? a glycolysis and the oxidation of pyruvate to acetyl coa b oxidation of pyruvate to acetyl coa and the citric acid cycle c the citric acid cycle and oxidative phosphorylation d oxidative phosphorylation and fermentation e fermentation and glycolysis

Cellular respiration is a series of metabolic reactions that produce energy (ATP) from foods in presence of oxygen. It has four steps: glycolysis, pyruvate oxidation, Krebs cycle and electron transport chain.

During cellular respiration, CO2 is released during the oxidation of pyruvate to acetyl CoA and the citric acid cycle.

During pyruvate oxidation, a carboxyl group (-COOH) is removed from pyruvate and released as CO2.

The citric acid cycle, also known as the Krebs cycle, uses pyruvate to produce CO2, adenosine triphosphate (ATP), and the reduced forms of nicotinamide adenine dinucleotide (NADH) and flavin adenine dinucleotide (FADH2).

In conclusion, during cellular respiration, CO2 is released during the oxidation of pyruvate to acetyl CoA and the citric acid cycle.

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