Lactic acid is produced as a result of:
Correct answer: B. Anaerobic respiration
- A. Glycolysis
- B. Anaerobic respiration
- C. Aerobic respiration
- D. All of these
Explanation
Lactic acid is produced during anaerobic respiration, specifically through lactic acid fermentation. This process occurs when oxygen is not available, and the pyruvic acid generated from glycolysis is converted into lactic acid. This is different from aerobic respiration, where pyruvic acid is oxidised in the presence of oxygen to produce energy, carbon dioxide, and water. Glycolysis itself does not produce lactic acid but rather pyruvic acid, which is further metabolised based on the availability of oxygen.
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About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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