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Understanding Fermentation: A Cellular Energy Process Without Oxygen

Learn about fermentation, a metabolic process used by organisms to break down carbohydrates for energy in the absence of oxygen. Explore the two main types, alcoholic and lactic acid fermentation, and their significance in both unicellular and multicellular organisms. Discover how glucose is converted into ATP, ethanol, and lactic acid through anaerobic pathways. Compare fermentation with cellular respiration to understand how energy is generated in different metabolic processes.

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Understanding Fermentation: A Cellular Energy Process Without Oxygen

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  1. Fermentation(anaerobic respiration)

  2. Fermentation Breaking down carbohydrates an the Absence of oxygen to gain energy. Used by both unicellular and multicellular organisms.

  3. There are two types of fermentation • Alcoholic fermentation • Lactic acid fermentation

  4. Alcoholic Fermentation • Breaking down glucose to form 2 ATP (and ethanol and carbon dioxide). • Used by unicellular organisms like yeast. • Takes place in the cytoplasm • Anaerobic

  5. Alcoholic Fermentation • glucose  pyruvic acid  ethanol + CO2 + 2ATP

  6. Lactic Acid Fermentation • Breaking down glucose to form 2 ATP (and lactic acid). • Used by multicellular organisms. • Anaerobic

  7. Lactic Acid Fermentation • glucose  pyruvic acid  lactic acid + 2ATP

  8. Fermentation or Respiration

  9. Cellular Respiration • Start : glucose end: CO2 & H20 • 38 ATP • aerobic • Alcoholic Fermentation • Start : glucose end: ethanol & CO2 • 2 ATP • anaerobic • Lactic acid Fermentation • Start : glucose end: lactic acid • 2 ATP • anaerobic

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