Splitting of glucose relates to_________?
Correct answer: C. glycolysis
- A. respiration
- B. photorespiration
- C. glycolysis
- D. pyruvic acid
Explanation
Glycolysis is the metabolic pathway in which one glucose molecule is split into two three-carbon molecules of pyruvate. Respiration is the broader process, while pyruvic acid is a product rather than the name of the splitting pathway. Students often choose respiration because glucose breakdown occurs during respiration, but that answer is too general.
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About Cellular Respiration
Cellular respiration releases energy from glucose through glycolysis, the link reaction, the Krebs cycle and the electron transport chain, producing ATP. The pathway differs in oxygen availability: aerobic respiration uses oxygen and yields more ATP, while anaerobic respiration produces much less ATP and forms lactic acid in muscles or ethanol and carbon dioxide in yeast.
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