Cellular RespirationEnergy is released by breaking the bonds of food molecules (such as glucose) to make ATP from ADPADP = adenosine diphosphateADP + Pi ATP2 typesaerobic respirationanaerobic respiration
Aerobic Respirationrespiration that requires oxygenstarts in the cytoplasmglycolysismoves to the mitochondriaKrebs CycleElectron Transport Chain
Aerobic RespirationC6H12O6 + 6O2 6CO2 + 6H2O38 ATP are produced per molecule of glucose2 ATP are used, so net ATP is 36Some energy is lost to the environment as heatexergonic reaction energy is released
Cellular Respiration and ATPGlycolysis requires 2 ATP to begin and produces 4 ATP as a result-net 2 ATP produced- Glucose is split into 2 Pyruvic Acid moleculesKrebs begins with the pyruvic acid molecules from glycolysis, breaks them down producing CO2 and high energy electrons netting 2 ATP in the process.The electrons released during the Krebs cycle are brought to the Electron Transport Chain by electron carrying molecules NADH and FADH. The ETC nets 32 ATP per molecule of Glucose that starts off Cellular RespirationThe total production of ATP in Aerobic Respiration is 38 ATP, 2 are used up so 36 net.
Anaerobic Respirationtakes place in the absence of oxygenFewer ATP are produced net ATP is 22 typesLactic acid fermentationAlcoholic fermentation
Lactic Acid FermentationEnzymes break down a glucose molecule into two lactic acid molecules, transferring energy to ATPC6H12O6 + 4ADP + 4Pi lactic acid + 4ATPThis process causesa burning sensation in muscle fatigue
Lactic Acid Fermentation
Alcoholic FermentationEnzymes break down a glucose molecule into two molecules of ethanol and two molecules of CO2, transferring energy to ATPC6H12O6 + 4ADP + 4Pi 2 ethanol + 2 CO2 + 4ATPThis process is usedto produce alcoholin gasoline additivesbaking