Cellular Respiration and Fermentation H2OH2O Energy cycle Photosynthesis Cellular Respiration sun glucose O2O2 CO 2 plants animals, plants ATP The Great

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  • Cellular Respiration and Fermentation
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  • H2OH2O Energy cycle Photosynthesis Cellular Respiration sun glucose O2O2 CO 2 plants animals, plants ATP The Great Circle of Life,Mufasa! CO 2 H2OH2O C 6 H 12 O 6 O2O2 light energy +++ even though this equation is a bit of a lie it makes a better story CO 2 H2OH2O C 6 H 12 O 6 O2O2 ATP energy + + +
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  • ATP ATP is biological energy ATP + water ADP + P = energy When you break the bond you get energy ATP = stored energy ADP = used energy
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  • Cellular Respiration Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen. 6CO 2 6H 2 O C 6 H 12 O 6 6O 2 ATP energy + + + Glucose 38 ATP produced
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  • Cytoplasm 2 ATP needed 4 ATP produced 2 ATP produced 34 ATP produced Oxygen required If no oxygen is present then fermentation occurs CO 2 released
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  • Glycolysis (occurs in cytoplasm) Break down glucose into 2 pyruvate molecules Glucose has 6 carbon Pyruvate has 3 carbon No oxygen in required (anaerobic) Needs 2ATP to happen Generates 4ATP Net gain of 2ATP at the end of the process
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  • After Glycolysis If oxygen is present, pyruvate moves to mitochondria where cellular respiration occurs. If not oxygen is present, pyruvate is used for alcoholic or lactic acid fermentation.
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  • Cellular respiration occurs in two steps Krebs cycle or citric acid cycle Produced 2ATP Electron transport chain Produced 34 ATP Both processes require oxygen and occur in the mitochondria
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  • Krebs cycle Pyruvic acid produced from glycolysis is used to make Carbon dioxide NADH ATP FADH 2 4 ATP are produced for immediate use for cell processes NADH and FADH 2 carry electrons to the electron transport chain to make more energy CO 2 is released from the cell
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  • Electron transport chain The ETC used high energy electrons from the Krebs cycle to convert ADP to ATP. ETC is composed of a series of carrier proteins in the inner membrane of the mitochondria. Water is produced and released at the end of the ETC. 34 ATP are produced in the end
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  • Fermentation Two types Alcoholic fermentation Lactic acid fermentation Both processes do not require oxygen (anaerobic) and occur after glycolysis.
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  • Alcoholic fermentation Yeasts and a few other microorganisms use this process CO 2 bubbles that are released from this process cause bread to rise. Also used to make beer and wine
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  • Lactic acid fermentation Occurs in humans and other eukaryotes Muscle cramps are caused by a build up of lactic acid When you exercise vigorously, the large muscles run out of oxygen quickly. Your muscles quickly produce ATP using lactic acid fermentation. Lactic acid builds up which causes your muscles to ache.

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