Equations Flashcards

1
Q

Henderson Hasselbalch Equation

A

pH= pKa + log (base/acid)

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2
Q

Keq

A

([C]^c [D]^d) / ([A]^a[B]^b)

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3
Q

pH=

A

pH = -log [H+]

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4
Q

At equilibrium delta G=

A

0

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5
Q

Delta G, Entropy and Enthalpy Equation

A

Delta G= Delta H - T Delta S

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6
Q

Acid Dissociation Constant Ka

A

Ka= [H+][Base] / Acid

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7
Q

pKa

A

pKa= -log Ka

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8
Q

Relates Keq and Delta G not

A

Delta G not = -RT ln Keq

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9
Q

Relates Keq and Delta G and Delta G not

A

Delta G= Delta G not + RT ln Keq

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10
Q

How to Calculate Delta S Entropy

A

Delta S = Kb ln W

Kb= Boltzman constant, W= #of ways to arrange

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11
Q

Myoglobin Fractional Saturation % Y

A
Y = [Mb O2]  /  ( [MbO2] + [Mb] ) 
MbO2 = Oxygen bound to Myoglobin, Mb unbound Myoglobin
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12
Q

Myoglobin Fractional Saturation % Y Pressure in O

A

Y = pO2 / (pO2 + K)

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13
Q

Michaelis Menton Equation

A

v = Vmax [S] / ( Km + [S] )

2 unknowns Vmax and Km

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14
Q

Michaelis Menton Equation Competitive Inhibition

A

v = Vmax [S] / ( Alpha*Km + [S] )

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15
Q

Michaelis Menton Equation UnCompetitive Inhibition

A

v = Vmax [S] / ( Km + alpha prime [S] )

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16
Q

Line Weaver Burke Equation

A

1/v = (Km/Vmax) * (1/[S]) + (1/Vmax)

y intercept = 1 / Vmax
x intercept = -1 / Km

17
Q

Line Weaver Burke Equation Competitive Inhibition

A

1/ v = (alphaKm/Vmax) * (1/[S]) + (1/Vmax)

18
Q

Line Weaver Burke Equation Uncompetitive Inhibition

A

1/v = (Km/ Vmax) * (1/[S]) + (alpha prime/Vmax)

19
Q

Ki to Calculate the Strength of Enzyme

A

Competitive Inhibition- Ki = [E][I] / [EI]
Uncompetitive Inhibition Ki prime = [ES] [I] / [ESI]
The smaller the better.

20
Q

Coefficient of Competitive Inhibition and Noncompetitive Inhibition

A

alpha= 1 + ([I]/Ki)

alpha prime = 1 + ([I]/Ki prime)

21
Q

Michaelis Menton Constant

A

Km = (k-1 + k2) / k1

E + S ES —k2–> E + P