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2013-03-06 16:15:01

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  1. metabolism
    all chemical reactions  and physical working of the cell
  2. anabolism
    also called biosynthesis- any process that results in synthesis of cell  molecules and structures
  3. catabolism
    the break down of bonds of larger molecules into smaller molecules
  4. biological catalyst
    chemicals that increase the rate of a chemical  reaction w/o becoming  part of the product  or being consumed in the reaction
  5. enzymes
    work by decreasing  the activation energy of a reaction

    without enzymes chemical reactions would be too slow for normal life processes to occur
  6. activation energy
    the amount of energy which must be  overcome for a reaction to proceed
  7. denaturation
    the weak bonds that maintain the native shape of the apoenzyme are broken
  8. competitive inhibitor
    a molecule that resembles the enzyme s normal substrate, directly competing for the active site
  9. noncompetitive inhibitor
    a molecule that binds to the enzyme at a place other then the active site  thus altering the shape of the active site indirectly called a regulatory molecule
  10. exergonic reaction
    a reaction that release energy as it goes fwd
  11. endergonic reaction
    a reaction that is driven fwd with the addition of energy
  12. oxidation/reduction reactions
    importanat in removing energy  and tranferring to other molecules to ultimatly make an energy rich compound in organisms
  13. aerobic respiration
    series of reactions that convert glucose to co2 and allows the cell to recover signi amounts of energy  requires oxygen  as the final electron acceptor
  14. fermentation
    when cells use only the glycolysis scheme to incompletly  oxidize glucose  and organic compund is the final electron acceptor
  15. anaerobic respiration
    uses ions other then free oxygen  as the final electron acceptor
  16. steps to aerobic respiration
    • glycolysis
    • pyruvic acid
    • krebs cycle