Fermentation (anaerobic respiration). Fermentation Breaking down carbohydrates an the Absence of oxygen to gain energy. Used by both unicellular and multicellular.

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Presentation transcript:

Fermentation (anaerobic respiration)

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

There are two types of fermentation Alcoholic fermentation Alcoholic fermentation Lactic acid fermentation Lactic acid fermentation

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

Alcoholic Fermentation glucose  glucose  pyruvic acid  ethanol + CO 2 + 2ATP

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

Lactic Acid Fermentation glucose  glucose  pyruvic acid  lactic acid + 2ATP

Fermentation or Respiration

Cellular Respiration Cellular Respiration Start : glucoseend: CO 2 & H 2 0 Start : glucoseend: CO 2 & H ATP 38 ATP aerobic aerobic Alcoholic Fermentation Alcoholic Fermentation Start : glucoseend: ethanol & CO 2 Start : glucoseend: ethanol & CO 2 2 ATP 2 ATP anaerobic anaerobic Lactic acid Fermentation Lactic acid Fermentation Start : glucoseend: lactic acid Start : glucoseend: lactic acid 2 ATP 2 ATP anaerobic anaerobic