4 - http/www4.ncsu.edu/~knopp/BCH451/e98c3.htm BCH 451 Fall...

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BCH 451 Fall 1998 Exam #3 Some constants: F = 96.48 kJ/mol-V; k = 1.381 x 10 -23 J/K; h = 6.626 x 10 -34 J-sec; log = 2.303; N o = 6.022 x 10 23 /mol; R = 8.315 J/mol-K; eV = 1.60 x 10 -19 J/K Draw the predominate structures of the following molecules at the pH indicated. Be sure to include all carbon and hydrogen atoms! 1. (4) Structure #1 at pH 7 and in anti configuration: A = pdTpdGp, B = CppAp (4) Structure #2 at pH 6: C = 1-myristoyl, 2-linolenoyl phosphatidyl inositol, D = 1-palmitoyl, 2-linoleoyl phosphatidyl inositol 1. (1.5) List the unique structural aspects of sphingolipids: 2. 1. 2. 3. Circle the RNA type which is specified on the first page: M R SN T 3. (0.3) Give the full name: 1. (0.2) Give the approximate % composition in the cell: 2. (0.5) Give the size(s) of this type: 3. (2) Give a complete description of its function within the cell: 4. (1) Define ionophore: 4. Fill in the blanks (0.3 each): 5. Full name of cAMP Full name of IP 3 Full name of PIP 2 Full name of C20:0 The equation which relates free energy and concentrations The process of nucleic acid strand separation Cotransport of two solutes in the same direction 1 of 4 4/27/2010 4:09 PM
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Protein kinase C is activated by these molecules Conformation of DNA which contains an open center Person responsible for the dideoxy method Class of proteins which bind non-specifically to DNA (1) Define second messenger: 1.
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