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Which of the following is a product of respiration resulting from the breaking of carbon-carbon bonds? a. glucose. b. oxygen. c. carbon dioxide. d. all of the above.

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During cellular respiration, the products produced are CO2 and H2O. This is from the addition of oxygen to the glucose or carbon components. Cellular respiration is the opposite of photosynthesis which on the other hand uses CO2 and H2O to produce O2 and energy

The correct answer is option C

Cellular respiration is the process in which the chemical energy of food is released and captured in the form of adenosine triphosphate.

The breakdown of carbohydrate, fat and protein can be used as fuels of cellular respiration.

In the process of glycolysis 6- carbon sugar is broken down into two molecules of 3-carbon molecules called as pyruvate.

Each pyruvate undergoes pyruvate decarboxylation which releases one carbon dioxide and one acetyl co-enzyme and then this acetyl co-enzyme enters into the Krebs cycle to release energy(ATP), carbon dioxide and water.

Hence, carbon dioxide is one of the products of cellular respiration.

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