Energy and the Cell

1. Energy and the Cell

4. Figure 5.10_1 Energy conversion Waste products Fuel Heatenergy Carbon dioxide Gasoline   Combustion Kinetic energyof movement Water Oxygen Energy conversion in a car

5. Figure 5.10_2 Energy conversion Waste products Fuel Heatenergy Cellular respiration Glucose Carbon dioxide   ATP ATP Oxygen Water Energy for cellular work Energy conversion in a cell

11. Figure 5.12A_s1 Triphosphate ATP: Adenosine Phosphategroup P P P Adenine Ribose p. 82

12. Figure 5.12A_s2 Triphosphate ATP: Adenosine Phosphategroup P P P Adenine Ribose H2O Hydrolysis Energy P P P Diphosphate ADP: Adenosine

13. Figure 5.12B Mechanical work Transport work Chemical work ATP ATP ATP Solute P Motorprotein P P Reactants Membrane protein P P P Product Molecule formed Solute transported Protein filament moved p. 82 ADP ADP ADP P P P

14. other players • NAD: NAD+ and NADH + H+ • like casino chips-eventually cash them for ‘real’ money: real money in cells = ATP • NADPH: like NADH but in plants • FAD: similar to NAD

16. Figure 6.5A Loss of hydrogen atoms(becomes oxidized) ATP O2 6 CO2 6 H2O C6H12O6 6 Glucose  Heat Gain of hydrogen atoms(becomes reduced) p. 91

17. C lost e- = oxidized & O gained e- = reduced oxidation Xe- + Y → X+ Ye- + NRG reduction X lost e- = oxidized & Y gained e- = reduced transfer of e- from one atom to another is what yields free NRG

18. C lost e- = oxidized & O gained e- = reduced oxidation C6H12O6 + 6O2 → 6CO2 + 6H2O + NRG reduction C lost e- = oxidized & O gained e- = reduced transfer of H to O (making H2O) is what yields free NRG

19. NAD+ + 2H → NADH + H+ is now reduced   oxidation H-C-OH + NAD+ C=O + NADH + H+ reduction dehydrogenase

21. Figure 6.5C 1 2 NADH NAD ATP 2 Controlledrelease ofenergy forsynthesisof ATP H Electron transport chain 2 O2 2 H H2O