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Quiz 1) Write the equation for Cell Respiration

Quiz 1) Write the equation for Cell Respiration 2) Where does Glycolysis occur in the cell and what are the 3 products?. Arby’s Beef n’ Cheddar Pizza Hut Stuffed Crust Pizza Burger King Whopper w/ Cheese McDonald's Big Mac Wendy’s Big Bacon Classic

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Quiz 1) Write the equation for Cell Respiration

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  1. Quiz 1) Write the equation for Cell Respiration 2) Where does Glycolysis occur in the cell and what are the 3 products?

  2. Arby’s Beef n’ Cheddar Pizza Hut Stuffed Crust Pizza Burger King Whopper w/ Cheese McDonald's Big Mac Wendy’s Big Bacon Classic Subway Double Meat Ball Sub (12") McDonald's Quarter Pounder Double Whopper w/ Cheese McD Chicken Select Strips McD Vanilla Triple Thick Shake

  3. Arby’s Beef n’ Cheddar 487 Pizza Hut Stuffed Crust Pizza 410 Burger King Whopper w/ Cheese 730 McDonald's Big Mac 560 Wendy’s Big Bacon Classic 640 Subway Double Meat Ball Sub (12") 1480 McDonald's Quarter Pounder 530 Double Whopper w/ Cheese 1090 McD Chicken Select Strips 1250 McD Vanilla Triple Thick Shake 1140 USDA Calorie Table

  4. Food and Energy

  5. “Cellular Respiration: Harvesting Chemical Energy” Chapter 9

  6. I. Two Basic Steps in Cell Respiration A. Glucose is Oxidized B. ATP Synthesized

  7. II. Redox Reactions A. Oxidation: B. Reduction: Xe- + Y ==> X + Ye- a. C6H12O6 + 6O2 ==> 6CO2 + 6H2O + ATP

  8. II. Redox Reactions A. Oxidation: B. Reduction: Xe- + Y ==> X + Ye- a. C6H12O6 + 6O2 ==> 6CO2 + 6H2O + ATP

  9. III. Electron Acceptor Molecules - Electron Carriers A. NAD+ (nicotinamide adenine dinucleotide) 1. Characteristics -coenzyme of dehydrogenase -electron carrier 2. Function -oxidizing agent -2 H from glu => NAD+ => NADH

  10. III. Electron Acceptor Molecules - Electron Carriers B. FAD (flavin adenine dinucleotide) -FADH2 -less energy than NADH

  11. IV. ATP Synthesis - Two Methods A. Oxidative Phosphorylation -90% of ATP -via ETC -O = Final Electron Acceptor

  12. IV. ATP Synthesis - Two Methods B. Substrate-Level Phosphorylation -enzyme – Pi => ADP

  13. V. The Process of Cellular Respiration A. Oxidation of Glucose 1. Glycolysis - “Splitting of Glucose” -Glu split => two 3C molecules -w/ or w/out O2 -cytosol

  14. V. The Process of Cellular Respiration A. Oxidation of Glucose 1. Glycolysis - “Splitting of Glucose” a. Two Phases of Glycolysis 1) Energy Investment Phase -2 ATP 2) Energy Payoff Phase -4 ATP -substrate level

  15. V. The Process of Cellular Respiration A. Oxidation of Glucose 2. Junction/Transition between Glycolysis and Kreb’s Cycle (O2 present) a. Pyruvate => Mitochondria 1) COO- removed 2) 2C oxidized by NAD+ ==> Acetate 3) CoA attaches ==> Acetyl CoA

  16. V. The Process of Cellular Respiration A. Oxidation of Glucose 3. Kreb’s Cycle -matrix -completes oxidation of glucose -NCFA 3211

  17. V. The Process of Cellular Respiration A. Oxidation of Glucose 3. Kreb’s Cycle

  18. V. The Process of Cellular Respiration B. Synthesis of ATP (by Oxidative Phosphorylation) -34 ATPs 1. Electron Transport Chain -cristae; many copies -NADH 2 electrons => Flavoprotein -2e- down chain, releasing energy -O = FEA => H2O

  19. V. The Process of Cellular Respiration B. Synthesis of ATP (by Oxidative Phosphorylation) 2. Chemiosmosis -Energy Coupling a. ATP Synthase -powered by flow of H+

  20. V. The Process of Cellular Respiration B. Synthesis of ATP (by Oxidative Phosphorylation) 2. Chemiosmosis b. Process of Chemiosmosis 1) ETC energy pumps H+ - matrix => intermembrane space => “Proton Motive Force” 2) H+ diffuse thru ATP synthase -ADP => ATP

  21. V. The Process of Cellular Respiration C. Summary of Cellular Respiration

  22. V. The Process of Cellular Respiration C. Summary of Cellular Respiration 1. Oxidation of Glucose 2. ATP Synthesis a. Substrate-Level Phosphorylation b. Oxidative Phosphorylation

  23. V. The Process of Cellular Respiration C. Summary of Cellular Respiration 3. Flow of Energy

  24. VI. Fermentation -Anaerobic -Glycolysis + Recycling of NAD+ -2 ATP - SLP

  25. VI. Fermentation A. Two Types of Fermentation 1. Alcohol Fermentation (yeast, bacteria) -yeast, bacteria -Pyruvate ==> Acetylaldehyde ==> Ethanol

  26. VI. Fermentation A. Two Types of Fermentation 2. Lactic Acid Fermentation -Pyruvate ==> Lactate -no CO2 -muscle cells, bacteria

  27. VI. Fermentation B. Comparing Fermentation and Cellular Respiration • -glycolysis • -NAD+ • 1. Fermentation • -NADH electrons to organic molecule • -2 ATP • 2. In Respiration • -NADH electrons to O2 • -34 to 38 ATP

  28. VI. Fermentation B. Comparing Fermentation and Cellular Respiration 3. Facultative Anaerobes: (yeast, some bacteria) -fermentation or respiration

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