FINAL A&P 1

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Author:
rwischnewski
ID:
290711
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FINAL A&P 1
Updated:
2014-12-05 18:37:58
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FINAL A&P
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A&P
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  1. ionic bonds are the result of ______.
    electrostatic force
  2. it is the desire of electrons to _______ that is the basis of all chemical reactions.
    complete their outer energy orbits
  3. a covalent bond is _______.
    two atoms sharing a pair of electrons
  4. a hydrogen bond is _______.
    attraction between two polar molecules
  5. an atom that has gained or lost an electron is a ______.
    ion
  6. substances that don't dissolve in water are called _______.
    hydrophobic
  7. a 1 molar solution of glucose (molecular weight 180) has how many grams of glucose per liter?
    180
  8. an acid is a molecule that gives up _____ in solution.
    hydrogen ion
  9. the energy derived from the random collision of molecules that allows exergonic reactions to proceed is the _______.
    energy of activation
  10. what of the following is not a part of a nucleotide?
    amino acid
  11. the hand-rails of DNA are made of sugars linked together by ______.
    phosphate
  12. the major component of the cell membrane is _______.
    phospholipid
  13. channels that transport substances against their concentration gradients are called ______.
    pumps
  14. ligand gated?
    protein channels that open after binding to a chemical messenger
  15. mechanically gated?
    protein channels that open after physical pressure on the protein
  16. voltage gated?
    protein channels that open after a change in the membrane's electrical potential

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