Which metabolic pathway is common to both fermentation and cellular respiration:
Correct answer: A. Glycolysis
- A. Glycolysis
- B. Kreb's cycle
- C. Synthesizes of acetyl Co-A
- D. Electron transport chain
Explanation
Glycolysis is the metabolic pathway that is common to both fermentation and cellular respiration. It's the process where glucose is broken down into pyruvate, producing energy in the form of ATP. So, it's like the starting point for both fermentation and cellular respiration.
This question appeared on the KMU Centralized Admission Test 2021 paper, which you can sit online with every answer explained.
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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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