CELLULAR RESPIRATION. Review Photosynthesis Autotrophs convert light energy into chemical energy CO 2 + H 2 O + light energy  C 6 H 12 O 6 + O 2.

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Cellular Respiration

Cellular RespirationReview PhotosynthesisAutotrophs convert light energy into chemical energyCO2 + H2O + light energy C6H12O6 + O2

How do we get energy?From eating.unless you are a plant, right?Not so fastGlucose (and other macromolecules) is not usable energy for cellsGlucose must be converted to usable energy (ATP)

ATPAdenosine triphosphateMolecule that is usable energy for cellsEnergy is found in bonds between phosphate groups

Cellular RespirationProcess that converts glucose energy into ATP energyOccurs in ALL living cells

Cellular Respiration BasicsChemical process which occurs in the MitochondriaC6H12O6 + O2 CO2 + H2O + ATP

66Types of Cellular RespirationType 1: Aerobic RespirationRequires O2

Type 2: Anaerobic RespirationDoes not require O2

Energy summary of Aerobic C.R.Glycolysis: Start with Chemical Energy (Glucose)Krebs Cycle: Convert to Usable Chemical Energy (many ATP)Electron Transport Chain: Make ATP and release Heat Energy

Anaerobic RespirationMuch less efficient at converting glucose to ATPOccurs in 2 steps:1. Glycolysis2. Lactic Acid Fermentation (animals) OR Alcoholic Fermentation (plants)

Lactic Acid FermentationAnimalsSome bacteria, some fungusLactic acid is producedWhy muscles are sore after a hard workout

Alcohol FermentationPlantsSome bacteria, some fungusEthanol, CO2 producedHow yeast makes bread riseHow alcoholic beverages are produced

Fermentation is useful

We eat more than carbohydrates

Audio/visual representationsAnimation:http://www.sumanasinc.com/webcontent/animations/content/cellularrespiration.html Rap:http://www.youtube.com/watch?v=VCpNk92uswY


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