BIO 181

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BIO 181
2013-09-10 02:02:20

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  1. What are all the steps of the scientific method?

    • Observation
    • Question
    • Hypothesis
    • Experiment
    • Conclusion

  2. What is the name of this Molecule?
    • {Mono}{saccharaides}
    • one              sugar
    What is the name of this Bond?
    Ionic Bond
  4. What is the difference between a compound and a atom?
    Compound; pure substance which contains atoms of 2 or more elements.

    Atoms; smalles indivisible unit of elements.
  5. What is the atomic number?
    Number of protons
  6. What is the atomic mass?
    The sum of protons and neutrons
  7. What determines the reactivity of an element?
    Valence electrons
  8. Compare molecule and compound.
    Molecule; 2 or more atoms held together by covalent bonds.Compound; a pure substance which contains atoms of 2 or more elements.
    a. Number of protons?
    b. Number of neutrons?
    c. Number of electrons?
    d. Number of valence electrons?
    e. Is it an anion or cation?
    • a. 13 protons
    • b. 14 neutrons
    • c. 13 electrons
    • d.
    • e.
  10. What is chemical bonding?
    The attraction between 2 atoms.
  11. What isi an ionic bond?
    An attraction between opposite charged ions.
  12. What is covalent bond?
    • Strong chemical bond
    • 2 atoms share 1 or more pairs of valence electrons.
  13. Compare polar and no-polar.
    • Polar= equal sharing molecule
    • non-polar= non equal sharing
  14. When water molecule is bonded with another water molecule the bond is called ?
    Covalent bonding

  15. Ionic compounds are
    Compounds from the formation of an oinic bond.( salt)
  16. Polar molecules are
    Molecules water with an uneven distrubution of chargers.
  17. Water is more dense at what temperature?
  18. Water is less dense (freezing) at what temperature?
  19. What is cohesion?
    Molecules of the same kind to stick together.
  20. What is adhesion?
    Different molecules stick together.
  21. What is a surface tention?
    How difficult it is to break the connection between molecules.
  22. What is calorie?
    The amount of energy it takes to raise the temperature of 1g by 1c.
  23. What is specific heat?
    The amount of heat that must be absorbed or lost.
  24. What is vaporization?
    The quantity of heat a liquid must be to absorb for 1g to be c onverted to gas.
  25. On pH scale what number indicates acids?
    Acids are lower 0-7
  26. On pH scale what number indicates base?
    Base  are higher 7-14
  27. Define macromolecule
    Giant molecule formed by the joining of smaller molucules.
  28. Define polymer
    Long molecule, linked together by covalent bonds.
  29. What is a hydrolysis reaction?
    Breaking of down  a polymer.
  30. What is a monosaccharide?
    • Single sugar
    • C6H12o6
  31. 1.What is starch?
    2.Where is it stored?
    3. Simple form?
    4. What kind of linkage?
    • 1.
    • 2. plant
    • 3. simplest anylose
    • 4. alpha glucosidic ; easy broken down by enzymes.
  32. 1.What is glycogen?
    2.Where is it stored?
    3. Simple form?
    4. What kind of linkage?
    • 1. type of sugar we store.
    • 2. found in animals and humans
    • 3. glucose is the simplest form
    •     ( we store it in the liver & muscle cells)
    • 4. energy storage.
  33. 1.What is a cellulose ?
    2.Where is it located?
    3. Simple form?
    4. What kind of linkage?
    • 1.
    • 2. in plants
    • 3. structure cell wall
    • 4. alpha beta
  34. 1.What is chitin?
    2. Simple form?
    • 1. found in arthropods( exoskeleton)
    • 2. glucose with a nitrogen appendage.
  35. What is the building block of fats?
    Fatty acid + glycerol (lipid=fat)
  36. What is saturated sugar?
    Sugar that has no double bonds an the fatty acid tail.
  37. What is Unsaturated sugar?
    • We have one or more, double bonds.
    • Mostly found in room temperature oils.