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    Cellular origin of CO2

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    Please explain the cellular origin of CO2 and need for O2 during human respiration.

    © BrainMass Inc. brainmass.com October 9, 2019, 5:00 pm ad1c9bdddf
    https://brainmass.com/biology/biological-chemistry/cellular-origin-of-co2-45393

    Solution Preview

    CO2 is generated in several steps:
    1) when pyruvate is converted to acetyl-Co-A before acetyl-Co-A enters the citric acid cycle
    2) when amino acids are converted to acetyl-Co-A before acetyl-Co-A enters the citric acid ...

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