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Which of the following stages of aerobic cellular respiration carbon dioxide (CO2) is released? Group of answer choicesglycolysis and the oxidation of pyruvate to acetyl CoAfermentation and glycolysiscitric acid cycle and oxidative phosphorylationoxidation of pyruvate to acetyl CoA and the citric acid cycle

Question

Which of the following stages of aerobic cellular respiration carbon dioxide (CO2) is released? Group of answer choicesglycolysis and the oxidation of pyruvate to acetyl CoAfermentation and glycolysiscitric acid cycle and oxidative phosphorylationoxidation of pyruvate to acetyl CoA and the citric acid cycle

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Solution

The stages of aerobic cellular respiration where carbon dioxide (CO2) is released are the oxidation of pyruvate to acetyl CoA and the citric acid cycle.

Here's a step-by-step explanation:

  1. Glycolysis: This is the first stage of cellular respiration, and it occurs in the cytoplasm. One glucose molecule is broken down into two molecules of pyruvate. However, no CO2 is released in this stage.

  2. Oxidation of Pyruvate to Acetyl CoA: This stage occurs in the mitochondria. Each pyruvate molecule is oxidized to form Acetyl CoA. During this process, one molecule of CO2 is released for each pyruvate molecule.

  3. Citric Acid Cycle (also known as Krebs Cycle or TCA Cycle): This also occurs in the mitochondria. Here, each Acetyl CoA is further oxidized, and two molecules of CO2 are released.

  4. Oxidative Phosphorylation: This is the final stage of aerobic respiration, where most of

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