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Cellular Respiration and Photosynthesis

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Cellular Respiration and Photosynthesis. Warm up. What is the purpose of the mitochondria and chloroplasts in cells?. If you were preparing for a marathon, which of these would you need to take in the most?. Oxygen Sunlight Carbon dioxide food. ODIP. All cells use cellular respiration. - PowerPoint PPT Presentation

Text of Cellular Respiration and Photosynthesis

  • Cellular Respiration and Photosynthesis

  • Warm up What is the purpose of the mitochondria and chloroplasts in cells?

  • If you were preparing for a marathon, which of these would you need to take in the most?OxygenSunlightCarbon dioxidefood

  • ODIP

  • All cells use cellular respirationBreaks down macromolecules (carbohydrates and lipids) to make energy for the cellATP (Adenosine Triphosphate) = energy in the cellEnergy is released when a phosphate bond is brokenAdenineRibose sugarPhosphate groups

  • Cellular Respiration

    C6H12O6 + 6O2 6CO2 + 6H2O + ATP (glucose) (carbon dioxide)(oxygen)(water)

  • 3 PhasesGlycolysisKrebs CycleElectron transport chain (ETC)

  • Where respiration occursGlycolysis occurs in the cytoplasmKrebs Cycle and ETC occur in the mitochondria

  • Making EnergyGlycolysisBreaks down glucoseMakes 2 ATP per glucose moleculeDoesnt need oxygenKrebs Cycle and ETCContinue the breakdown of glucoseMakes 34 ATP per glucose moleculeNeeds oxygen

  • The Mitochondrion is the power station of the cellOnly found in eukaryotic cellsMade of 2 membranes (inner and outer membrane)Has its own DNA!One = mitochondrion, more than one = mitochondria

  • What happens if you dont have mitochondria?You can only do glycolysis

  • What happens if there isnt any oxygen?Fermentation: a process that occurs in the absence of oxygen, produces alcohol or lactic acid (causes cramping in muscles)Aerobic: oxygen presentAnaerobic: oxygen absent

    Still does glycolysis, but no Krebs or ETC

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