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Chemistry Pre-quiz - Spokane Public Schools

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Chemistry Pre-quiz - Spokane Public Schools Powered By Docstoc
					  AP Bio Unit 1 Review
        10.3.11
To Do:
          your page “Unit 1 Review”
    1)Title

     2)Number down your page 1-23.
     1) How many neutrons does the
          isotope Na - 24 have?
1.   11         11
              Na
2.   23      22.99
            Sodium
3.   12
4.   13
2) How many protons and electrons
        does Na have?
1.   23: 11       11
                Na
2.   12: 11    22.99
              Sodium
3.   11: 11
4.   13: 11
      3) Nitrogen-12 and Nitrogen-14 are
                 examples of?
1.   ions
2.   neutrons
3.   isotopes
4.   valences
5.   molecules
4) Determine if Sr is a metal or
nonmetal and what its ionic charge is
knowing its valence electrons.

                       38
                     Sr
1.   Metal: -2     87.62
2.   Metal: +2   Strontium

3.   Metal: -1
4.   Metal: +1
     5) DNA is composed of building
          blocks called _____.
1.   nucleic acids
2.   Gs
3.   nucleotides
4.   adenines
5.   amino acids
     6) What element is found in all
          organic compounds?
1.   carbon
2.   oxygen
3.   helium
4.   iron
5.   nitrogen
7) This atom can form up to _____
         single covalent bond(s).
1.   0
2.   1
3.   2
4.   3
5.   4
 8) Which figure correctly illustrates bonding
                   in H2O?
1.

2.

3.
     9) The brackets are indicating
             a(n) _____ bond.
1.    ionic
2.    polar covalent
3.    single (nonpolar)
      covalent
4.    hydrophobic
5.    hydrogen
     10) Each water molecule is joined to _____
       other water molecules by ____ bonds.

1.    two ... hydrogen
2.    four ... hydrogen
3.    three ... ionic
4.    four ... polar covalent
5.    two ... polar covalent
     11) Why isn't this insect drowning?


1.     Surface tension.
2.     The insect is very light.
3.     It is difficult to change the
       temperature of water.
4.     The insect is swimming.
5.     The insect is flying just
       above the water surface.
     12) How does the pH of the solution on the right
      compare with that of the solution on the left?


1.   The solution on the right is
     neutral relative to the solution
     on the left.
2.   Both of these solutions are
     equally acidic.
3.   The solution on the right is
     basic relative to the solution on
     the left.
4.   Both of these solutions are
     equally basic.
5.   The solution on the right is
     acidic relative to the solution
     on the left.
     13) Which one of these is an amino group?

1.    B
2.    D
3.    E
4.    A
5.    C
     14) Which one of these is a hydroxyl group?


1.   B
2.   D
3.   E
4.   A
5.   F
     15) Which one of these is a phosphate group?


1.   B
2.   D
3.   E
4.   A
5.   C
     16) Which one of these behaves as an acid?


1.   B
2.   D
3.   E
4.   A
5.   F
         17) Glycogen is _____.

1.   the form in which plants
     store sugars
2.   a polysaccharide found in
     animals
3.   a polysaccharide found in
     plant cell walls
4.   a transport protein that
     carries oxygen
5.   a source of saturated fat
     19) This figure is an example of
                a(n) _____.
1.    nucleic acid
2.    protein
3.    saturated fat
4.    unsaturated fat
5.    steroid
      20) What type of bond joins the
      monomers in a protein's primary
                structure?
1.   ionic
2.   hydrophobic
3.   peptide
4.   S—S
5.   hydrogen
 21) Which of these illustrates the secondary
           structure of a protein?
1.

2.

3.
         22) Enzymes work by _____.

1.   adding a phosphate group
     to a reactant
2.   decreasing the potential
     energy difference between
     reactant and product
3.   adding energy to a
     reaction
4.   increasing the potential
     energy difference between
     reactant and product
5.   reducing EA
     23) As a result of its involvement in a
         reaction, an enzyme _____.

1.   loses a phosphate
     group
2.   permanently alters its
     shape
3.   loses energy
4.   is unchanged
5.   is used up

				
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