BCH 2333 UOttawa Questions with Correct Answers

BCH 2333 UOttawa Inositate - Answer- Wobble Position base found in tRNA. Can Hydrogen bond to U, C, and A Adenine (pairing) - Answer- Nucleotide found in DNA and RNA. Can form 2 hydrogen bonds with thymine or uracil Guanine (pairing) - Answer- Nucleotide found in DNA and RNA. Can form 3 hydrogen bonds with cytosine Thymine (pairing) - Answer- Nucleotide found in DNA. Can form 2 hydrogen bonds with adenine Cytosine (pairing) - Answer- Nucleotide found in DNA and RNA. Can form 3 hydrogen bonds with guanine Uracil (pairing) - Answer- Nucleotide found in RNA. Can form 2 hydrogen bonds with adenine. A de-methylated thymine Purines - Answer- Bases with a double-ring structure. Adenine and Guanine Pyrimidines - Answer- Bases with a single-ring structure. Thymine, Uracil, and Cytosine Gibbs free energy - Answer- The energy in a system that can be used to drive chemical reactions. If the change in free energy of a reaction (Delta G, the free energy of the products minus the free energy of the energy of the reactants) is negative, the reaction will occur spontaneously. Gibbs free energy equation - Answer- ΔG = ΔH - TΔS Equilibrium constant - Answer- Value that expresses how far the reaction proceeds before reaching equilibrium. A small number means that equilibrium is towards the reactants side while a large number means that the equilibrium is towards the product side. K Equilibrium constant expression - Answer- Keq = (([C]^c)*([D]^d))/(([A]^a)*([B]^b)) Gibbs free energy at equilibrium - Answer- ΔGo = -R*T*ln(Keq) The hydrophobic effect - Answer- The exclusion of nonpolar molecules by polar molecules, which drives biological processes such as the formation of cell membranes and the folding of proteins. Done so because it promotes an increase in entropy. Bronsted-Lowry Acid - Answer- Donates a proton