Respiration Cellular respiration is the process that releases energy by breaking down glucose and other food molecules in the presence of oxygen. Oxygen+

  • Published on
    03-Jan-2016

  • View
    212

  • Download
    0

Embed Size (px)

Transcript

  • RespirationCellular respiration is the process that releases energy by breaking down glucose and other food molecules in the presence of oxygen.

    Oxygen+ glucose->carbon dioxide+ water

  • Figure 92Cellular Respiration: An OverviewGlucoseGlycolysisCytoplasmPyruvic acidElectrons carried in NADHKrebs CycleElectrons carried in NADH and FADH2Electron Transport ChainMitochondrionMitochondrionSection 9-1

  • Glycolysis takes place in cytoplasmGlycolysis is the process in which one molecule of glucose is broken in half, producing two molecules of pyruvic acid.Two ATP molecules are needed as activation energy to produce 4 ATP molecules and 2 NADH molecules

  • Figure 93GlycolysisGlucoseTo the electron transport chainSection 9-12 Pyruvic acid

  • Figure 93GlycolysisGlucoseTo the electron transport chainSection 9-12 Pyruvic acid

  • Chemical PathwaysGlucoseGlycolysis Krebs cycle Electron transportFermentation (without oxygen)Alcohol or lactic acidSection 9-1

  • Figure 93GlycolysisGlucoseTo the electron transport chainSection 9-12 Pyruvic acid

  • Figure 94Lactic Acid FermentationGlucosePyruvic acidLactic acidSection 9-1

  • FermentationWhen oxygen is not present, fermentation occurs. Fermentation releases energy from food by producing ATP with out oxygen.There are two types of fermentationAlcoholic and Lactic Acid

  • Figure 94Lactic Acid FermentationGlucosePyruvic acidLactic acidSection 9-1

  • Figure 94Lactic Acid FermentationGlucosePyruvic acidLactic acidSection 9-1

  • FlowchartSection 9-2Glucose (C6H1206)+Oxygen (02)GlycolysisKrebs CycleElectron Transport ChainCarbon Dioxide(CO2)+Water(H2O)Cellular Respiration

  • Krebs CycleKrebs cycle occurs in the mitochondria and in the presence of oxygen pyruvic acid ( from glycolysis) is broken down into carbon dioxide.Through a series of chemical reactions citric acid is formed and enters the krebs cycle (citric acid) to producing oxygen, ATP and NADH

  • Figure 96The Krebs CycleCitric Acid ProductionSection 9-2Mitochondrion

  • Figure 96The Krebs CycleCitric Acid ProductionSection 9-2Mitochondrion

  • Electron Transport Chain

  • Figure 97Electron Transport ChainSection 9-2Electron TransportHydrogen Ion MovementATP ProductionATP synthaseChannelInner MembraneMatrixIntermembrane SpaceMitochondrion

Recommended

View more >