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Respiration. Breaking Down the Definitions. Cellular Respiration Glycolysis Pyruvic Acid NADH Anaerobic Aerobic Respiration Fermentation Lactic Acid Fermentation Alcoholic Fermentation Mitochondrial Matrix Krebs Cycle Oxaloacetic Acid Citric Acid. BrainPop Respiration.
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Breaking Down the Definitions • Cellular Respiration • Glycolysis • Pyruvic Acid • NADH • Anaerobic • Aerobic Respiration • Fermentation • Lactic Acid Fermentation • Alcoholic Fermentation • Mitochondrial Matrix • Krebs Cycle • Oxaloacetic Acid • Citric Acid
Chemical Equation of Cellular RespirationQuiz Next Meeting! Cellular Respiration is the complex process in which cells make ATP by breaking down organic compounds
Glycolysis • Organic compounds are converted into 3-Carbon molecules of PYRUVIC Acid, making ATP and NADH (an electron carrier molecule). • Cash vs Check • In Cytoplasm • Anaerobic process • Produces 2 ATPs of Energy
Glycolysis Aerobic Respiration New 3-Carbon Molecule Pyruvic Acid New 6 Carbon Molecule Sugars G3P Anaerobic Respiration
If No Oxygen Present the Pyruvic Acid… • Anaerobic Process • Fermentation • Pyruvic acid is converted into NAD and NADH, creating Lactic Acid (muscle soreness, cramps, fatigue) • Some plants convert Pyruvic acid into ethyl alcohol
If Oxygen is present the Pyruvic Acid • Continues into the KREBS Cycle • Also called Citric Acid Cycle • Occurs in the Mitochondria
Krebs Cycle • Pyruvates with the help on an enzyme, Acetyl CoA, combine with Oxaloacetic acid to make Citric Acid and also releases CO2. • Citric Acid then release more CO2 and a Hydrogen atom to create a 5 Carbon molecule and NADH • The new 5 Carbon molecule release more CO2 and another Hydrogen atom to make a 4 Carbon molecule and NADH • The 4 Carbon molecule releases another H and also FAD • The 4 Carbon molecule releases another H and forms Oxaloacetic Acid and the Krebs cycle continues
Electron Transport Chain (ETC) • All of the FADs and NADHs created in Krebs Cycle give there electrons to the ETC • ETC ultimately produces ATP, up to 34 molecules!
Efficiency of Cellular Respiration • 1 Molecule of Glucose yields • 34 molecules of ATP from ETC • 2 molecules of ATP from Glycolysis • 2 molecules of ATP from Krebs cycle