Question

Which stages of cellular respiration produce co2 as a waste product?

Answer 1

Answer:

During the Bridge Reaction and the Krebs cycle.

Explanation:

Hello,

Respiration has the overall chemical reaction:

$C_6H_{12}O_6+6O_2-->6CO_2+12H_2O$

The specific steps where carbon dioxide is produced is during the bridge reaction in which two pyruvate molecules from glycolysis are converted into two molecules of acetyl coenzyme A, with two molecules of carbon dioxide produced as metabolic product (waste). On the other hand, during the Krebs cycle 8 molecules of NADH and 2 of FADH2 are produced since they are needed for the electron transport chain, and in the course of their synthesis, four more carbon dioxide molecules are yielded as waste.

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