1. Cellular Respiration Part 1: Glycolysis & Fermentation

2. Objectives Identify the two major steps of cellular respiration Identify the two major steps of cellular respiration Describe the major events in glycolysis Describe the major events in glycolysis Compare lactic acid fermentation with alcoholic fermentation Compare lactic acid fermentation with alcoholic fermentation Calculate the efficiency of glycolysis Calculate the efficiency of glycolysis

3. Cellular Respiration Is the process in which cells make ATP by breaking down glucose Is the process in which cells make ATP by breaking down glucose ATP is needed for cells to do __________. ATP is needed for cells to do __________. All living things do cellular respiration All living things do cellular respiration Many of the reactions in cellular respiration are redox reactions Many of the reactions in cellular respiration are redox reactions Redox is short for _______________, in which one reactant loses electrons and the other gains electrons Redox is short for _______________, in which one reactant loses electrons and the other gains electrons

4. TURNING GLUCOSE INTO ATP FOR CELL WORK Why are these reactants and products familiar?

6. REVIEW 1. What fuel do we use to make energy?

7. REVIEW 2. WHERE DO WE GET THE FUEL?

8. 3. WHERE DO PLANTS GET THE FUEL?

9. Locations of Cellular Respiration CYTOPLASM & MITOCHONDRION

10. Overview of Cellular Respiration The products of photosynthesis become the reactants of respiration The products of photosynthesis become the reactants of respiration Cellular respiration is divided into two stages: Cellular respiration is divided into two stages: Glycolysis (______________) Glycolysis (______________) Aerobic Respiration (__________) Aerobic Respiration (__________)

11. Steps of Cellular Respiration 1. Glycolysis 2. Krebs Cycle 3. Electron Transport Chain

12. GLYCOLYSIS Is the process of glucose being split into 2 molecules of pyruvic acid Is the process of glucose being split into 2 molecules of pyruvic acid It happens in the cytoplasm It happens in the cytoplasm Is catalyzed by special enzymes Is catalyzed by special enzymes It is anaerobic It is anaerobic What does anaerobic mean? What does anaerobic mean?

13. GLYCOLYSIS 1.Glucose is converted into a new 6-C compound by using 2 ATP’s 2.The 6-C compound is then split into two 3 carbon molecules of G3P 3.The 2 G3P molecules are then oxidized into 2 new 3-C molecules by reducing 2 NAD + into 2 NADH & 2H + 4.Finally, 4 ADP molecules are added to the 3-C molecules, forming 2 molecules of pyruvic acid, 4 ATP’s, & 2 H 2 O

14. GLYCOLYSIS

16. Glycolysis Energy Account UsedMade Net total:

17. What Happens when Oxygen is Not Present after Glycolysis?

18. Fermentation Glucose 2 Pyruvic acid E Ethanol Lactic Acid Glycolysis Alcoholic Fermentation Lactic Acid Fermentation

19. Review 9. What are the two types of fermentation? 10. Which type of fermentation do humans sometimes do? 11. What does lactic acid do to humans?