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Decomposition of Glucose

Cellulose

Decomposition

  • skeletal architecture of the plant cell wall

  • the repeating unit: glucose

  • condensation polymerization

  • dehydration

  • glucose: C6H12O6

Decomposition

Decomposition

  • dead organic substances are broken down into simpler organic or inorganic matter

  • carbon dioxide, water, simple sugars, and mineral salts

  • heterotrophic organisms

  • humans, bacteria and fungi

Glycolysis

Step 1

Glycolysis

Continue

  • exergonic

  • oxidation and reduction

  • pyruvic acid: C3H4O3
  • 2-keto propanoic acid

Fermentation

  • in the absence of oxygen

  • alcoholic fermentation and lactic acid fermentation

Step 2

Alcoholic Fermentation

Alcoholic Fermentation

  • certain yeasts (single-cell organisms)

  • in the absence of oxygen

  • form ethanol and carbon dioxide

  • oxidation and reduction

  • alcoholic beverages (wine and beer)

  • bread making

Lactic Acid Fermentation

  • insufficient amount of oxygen

  • oxidation and reduction

  • 2-hydroxy propanoic acid

Lactic Acid Fermentation

Cellular Respiration

Cellular Respiration

  • enough oxygen

  • oxidation reaction

  • complete combustion

  • exergonic reaction

  • in the cells of all organisms

  • autotrophs such as plants

  • heterotrophs such as animals.

The End

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