Rev General Bio I

Chapter 06 Energy Flow in Cells.

  1. Energy Kinetic Potential : types and examples.

  2. 1st Law of Thermodynamics; 2nd Law of Thermodynamics. Entropy –

  3. How do living things thwart the 2nd LoT?

  4. What is a Chemical Rxn = Reactants à products

  5. Exergonic; Endergonic

  6. Activation Energy

  7. Temperature

  8. What are the Complex Biological Molecules

  9. How are Endergonic.& Catabolism rxns coupled? What does ENTROPY mean to this coupling?

  10. What is glucose ‘coupled’ with? How is the sun coupled to glucose? How is muscle contraction coupled to glucose?

  11. What is an energy-carrier molecule? Which is the most important en-carrier in the body?

  12. What is ATP, ADP, AMP, Pi?

  13. What is the short term en storage system of the body?

  14. How are glucose, glycogen, starch, fat, proteins, etc. long term energy storage molecules?

  15. What are NAD (H) & FAD (H)

  16. What are the molecules that act as electron-carriers.

  17. Explain how Metabolism is a series of chemical rxns that control en trx w/in the cell.

  18. What is a Catalyst? What is an enzyme? How are the two similar? How are they different? How do they affect the activation energy? How are catalysts affected by the rxns they catalyze?

  19. Define and give an example of ‘spontaneous’.

  20. How does Temperature affect a spontaneous reaction?

  21. What is a Biological Catalysts.

  22. What does it mean when we say that an enzyme is ‘specific’?

  23. How is enzyme activity like a lock and key mechanism? What is the ‘active site’ on an enzyme?

  24. Explain how a molecule is broken down in a series of discrete steps. Define discrete. What effect does this have on ‘activation energy’? How much energy is transferred as USEABLE energy? What is ‘heat’ considered?

  25. Why do cells regulate enzyme synthesis? How is this regulation achieved?

  26. What are ‘proenzymes’? Explain the importance of proenzymes.

  27. What is ‘Feedback inhibition’

  28. Define ‘allosteric regulation’; ‘competitive inhibition’. How do some poisons ‘work’?

  29. What do Hydrogen bonds have to do with protein/enzyme structure. How do Salt, pH, and Temperature affect protein structure?

  30. What are CoEnzymes?