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Cellular Respiration Converting Food Energy into Cell Energy. Cellular Respiration Converting Food Energy into Cell Energy. Process which converts macromolecules into an energy form cells can use, ATP 3 Stages. Cellular Respiration Stage 1: Glycolysis. Occurs in the cytoplasm of cells - PowerPoint PPT Presentation
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Cellular RespirationCellular RespirationConverting Food Energy into Cell EnergyConverting Food Energy into Cell Energy
Cellular RespirationCellular RespirationConverting Food Energy into Cell EnergyConverting Food Energy into Cell Energy
• Process which converts macromolecules into an energy form cells can use, ATP
• 3 Stages
Cellular RespirationCellular RespirationStage 1: GlycolysisStage 1: Glycolysis
• Occurs in the cytoplasm of cells
• O2 not required (anaerobic)
• Some ATP produced• Net yield = 2 ATPs
Cellular RespirationCellular RespirationStage 2: The Krebs CycleStage 2: The Krebs Cycle
• Occurs in the mitochondria
• O2 required (aerobic)
• Some ATP produced• Net yield = 2 ATPs
Cellular RespirationCellular RespirationStage 3: Electron Transport ChainStage 3: Electron Transport Chain
• Occurs in the membrane of mitochondria
• O2 required (aerobic)
• A lot of ATP produced• Net yield = 32 ATPs
Cellular RespirationCellular RespirationReview…...Review…...
• 3 Stages:– Stage 1: Glycolysis
• O2 not required (anaerobic)
• Some ATP produced
– Stage 2: Krebs Cycle• O2 required (aerobic)
• Some ATP produced
– Stage 3: Electron Transport System
• O2 required (aerobic)
• Much ATP produced
Q. Where does each Stage occur?
A. Cytoplasm of the cell
A. Mitochondrion
A. Mitochondrial membrane
2 ATPs
2 ATPs
32 ATPs