Card Set Information

2012-11-15 16:46:46

Show Answers:

  1. Non polar molecule example
    oils, fats, lipids
  2. Hydrophilic
    • water loving
    • polar molecule that dissolves in H2O
  3. How does hydrogen bonding affect life?
    • when water is solid, it allows H2O to form hydrogen bonds and spread out
    • solids are less dense
  4. solvent
    what is doing the dissolving
  5. A hydrogen bond is formed when
    partially negative charged oxygen atoms and the partially positive charged hydrogen atom of a molecule bonds to O, N, F of another molecule
  6. Hydrophobic
    • water fearing
    • non polar molecule that do not dissolve in H2O
  7. Active site
    specific location where the substance bonds on enzyme
  8. Ion
    atom that has lost or gained one or more electrons becomes and ion and carries an electric charge
  9. Compound
    pure substance formed when different elements combine
  10. density
    • compactness of a substance
    • ratio of mass to volume
    • d=m/v
  11. Meniscus
    cup shaped form at the top of H2O
  12. Capillary action
    tendency of a liquid substance to move along a solid substance due to adhesion.  cohesion also allows H2O to pull H2O along with it
  13. surface tension
    • molecules of a liquid stick together
    • hydrogen bonds cause this with H2O
    • H2O strider stands of surface of H2O
  14. non polar molecule
    • molecule without an electical charge
    • do not dissolve in H2O
    • ex- lipids
  15. polar molecule
    • unequal distribution of charges on the water molecule make it a polar molecule
    • H2O molecule has a positive and negative end