BCH 2333 Equations Exam Questions with Correct Answers Graded A+

BCH 2333 Equations Exam Questions with Correct Answers Graded A+



Spontaneous Reaction - Answers ΔG = ΔH - TΔS

ΔG at given starting conditions for (aA + bB <--> cC + dD) - Answers ΔG = ΔG° +
RTln([C]^c[D]^d/[A]^a[B]^b)

Equilibrium (ΔG = 0) - Answers ΔG° = -RTlnKeq

Endergonic coupled with Exergonic - Answers ΔGendo + ΔGexo < 0

pH Formula - Answers pH = -log[H+]

Ka Formula - Answers Ka = ([H+][A-])/[HA]

pKa Formula - Answers pKa = -logKa

Buffer Formula - Answers pH = pKa + log([A-]/[HA])

Buffer Region for Weak Acids - Answers pKa - 1 < pH < pKa + 1

Protein Ligand Binding - Answers P + L <---> PL

Ligand Ka Formula - Answers Ka = ([PL]/[P][L]) = Ka/Kd = 1/Kd

Fraction of Occupied Binding Sites - Answers Y = (binding sites occupied)/(total binding sites) = [L]/([L] +
(1/Ka)) = [L]/([L] + (1/Kd))

Ligand Binding Sites ΔG° - Answers ΔG° = -RTlnKa = RTlnKd

Cooperativity Formula - Answers log(Y/(1-Y)) = nlog[L] - logKd

Cooperativity - Answers P + nL <---> PLn

Enzyme Pathway - Answers E + S <---> ES <---> EP <---> E + P

Michaelis Menton Formula - Answers Vo = (Vmax[S]/([S] + Km))

Turnover Number Equation - Answers Kcat = Vmax/[Etot]

Catalytic Efficiency Equation - Answers Kcat/Km

Competitive Inhibition - Answers Vmax unchanged, Km increases

Uncompetitive Inhibition - Answers Vmax decreases, Km decreases, ratio remains unchanged

Mixed Inhibition - Answers Vmax decreases, Km change (by different factors)