6. Energy for the body Trapped in chemical bonds of fats, proteins, and carbs (potential) liberate energy –break bonds –release energy, CO 2 and H 2 0 –Energy is transferred to ATP for use in the body

7. Glycolysis Splitting sugar (glucose) Used by all organisms Occurs in cytoplasm Phosphorylation –Adding a phosphate to a substance NAD + –Electron acceptor (carrier) Used in electron transport chain for energy –nicotinamide adenine dinucleotide

8. Glycolysis Animation Smith College

9. Glycolysis Where? When? Why? Catabolic Anabolic What happens to pyruvate

10. Pyruvate Aerobic - presence of oxygen –enters the Krebs cycle (mitochondrion) tricarboxylic acid (TCA) cycle Anaerobic - no oxygen –fermentation pathway –pyruvate forms lactic acid –Lactic acid is transported to liver to be converted