CELLULAR RESPIRATION. 1. Cellular Respiration – when cells break down simple food molecules such as glucose and release the energy they contain. A molecule.

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CELLULAR RESPIRATION

CELLULAR RESPIRATION

CELLULAR RESPIRATION1. Cellular Respiration when cells break down simple food molecules such as glucose and release the energy they contain.

A molecule of glucoseCELLULAR RESPIRATION2. Respiration Equation

C6H12O6 + 6O2 6CO2 + 6H2O + EnergyREACTANTSPRODUCTSYieldsCELLULAR RESPIRATION3. Two Stages:1) Stage 1 Glucose molecules are broken down into smaller molecules in cytoplasm

CELLULAR RESPIRATION2) Stage 2 small molecules are broken down even smaller; requires oxygen; a lot of energy is released (in mitochondria)

CELLULAR RESPIRATION4. Reactants of Respiration Glucose and Oxygen

CELLULAR RESPIRATION5. Products of Respiration Carbon Dioxide and Water (they diffuse out of cell) and Energy

ENERGY!CELLULAR RESPIRATION6. Photosynthesis vs. Respiration Opposite cycles; together they form a cycle that keeps the levels of oxygen and carbon dioxide constant

CELLULAR RESPIRATION7. Fermentation An energy releasing process (like respiration) that does NOT require oxygen (there are 2 types)CELLULAR RESPIRATION1) Alcoholic fermentation that occurs in yeast and single-celled bacteria; produces alcohols, carbon dioxide, and energy

CELLULAR RESPIRATION2) Lactic Acid fermentation that occurs when cells lack oxygen; a build up of lactic acid makes muscles feel weak

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