bio ch 9

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Danielvu28
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139440
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bio ch 9
Updated:
2012-03-03 22:37:16
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bio
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bio ch 9
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  1. How do organisms get the energy that they need?
    • BY BREAKING DOWN FOOD MOLECULES GRADUALLY AND CAPTURING THEIR CEMICAL
    • ENERGY
  2. Which organisms do cellular respiration?
    ALL EUKARYOTES (all cells with nucei)
  3. During exercise, what do we rely on for energy?
    STORED ATP, CELLULAR RESPIRATION & LACTIC ACID FERMENTATION
  4. What is the starting molecule of glycolysis?
    GLUCOSE
  5. How many net molecules of ATP are made by Glycolysis?
    2
  6. Does Glycolysis require ATP (Trick Question)?
    YES – 2 ATPs are consumed and 4 ATPs are produced leaving a gain of 2 ATPs.
  7. What is the correct sequence of events?
    Glycolysis -> Krebs Cycle -> Electron Transport
  8. Cellular respiration is aerobic...what does this mean?
    IT REQUIRES OXYGEN.
  9. Why do you ‘breath heavy’ after running a race?
    YOU ARE REPAYING AN OXYGEN DEBT
  10. Where does cellular respiration occur?
  11. IN THE MITOCHONDRIA
  12. What is a product of cellular respiration?
    H2O
  13. How does photosynthesis relate to cellular respiration?
    THE PRODUCTS OF PHOTOSYNTHESIS ARE THE REACTANTS OF CELLULAR RESPIRATION.
  14. Overall, how many molecules of ATP are produced from 1 molecule of glucose during cellular
    respiration?
    36
  15. How does the Krebs Cycle start and finish?
    Pyruvic acid yields carbon dioxide.
  16. In eukaryotes where is the ETC?
    INNER MITOCHONDRIAL MEMBRANE
  17. Which molecules pass high energy electrons to the ETC?
    NADH & FADH2
  18. What do high-energy electrons that move down the ETC ultimately provide?
    THEY CONVERT ADP MOLECULES TO ATP MOLECULES.
  19. Which process is NOT a stage of cellular respiration?
    FERMENTATION
  20. In which cells does lactic acid fermentation occur?
    MUSCLE CELLS
  21. The energy needed to win a 1-minute foot race comes primarily from which process?
    LACTIC ACID FERMENTATION.
  22. What is needed to convert pyruvic acid into lactic acid?
    NADH
  23. What happens during fermentation?
    NAD+ IS REGENERATED ALLOWING GLYCOLYSIS TO CONTINUE.
  24. What causes the air bubbles & spongy texture of bread?
    ALCOHOLIC FERMENTATION

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