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Find the equation of the line which passes through the point (9,5) and has a slope 1
Give your answer in the form y=m x+b
The constants should be given exactly, e.g., 1/3 rather than 0.33.
In an enzyme reaction experiment, the concentration of the substrate S
S is varied and the velocity measured for each concentration, giving the following data.
[S](mM)= 0.2, 0.4, 0.6, 0.8, 1.0
V(μM/min)= 0.3, 0.49, 0.61, 0.7, 0.77
By sketching the Lineweaver-Burk plot of 1/V against 1/[S] determine an approximation of
Km and Vmax. No need to sketch.
Which of the following is the best approximation of Km and the maximum velocity Vmax?
1) Km = 1.26 and Vmax = 2.5
2) Km = 1.25 and Vmax = 0.63
3) Km = 0.63 and Vmax = 1.25
4) Km = -0.63 and Vmax = 1.25
A protein P binds to receptors on the surface of a cell according to the rule
V\text{free}+\text{P} \underset{k_2}\overset{k_1}\rightleftharpoons}}\text{bound},\]
where \(k_1 = 7.6 \times 10^6 M^{-1}s{-1}\) and \(k_2 = 1 54-1}\). What is the ratio of free
to bound receptors at equilibrium in a 3 \(\mu MV) solution of protein? Give the result to 3
significant figures.
A reversible chemical reaction combines A and B to produce C and D according to
A+2B⇌k1/k2 C+D. At equilibrium, A, B and C are present in concentrations 1 M, 0.05 M, 500 mM respectively.
If the rate constants are k1 = 2M^−2s^−1 and k2=1M^−1s^−1, what is the concentration of D in M at equilibrium? Give the result to three significant figures.
Propose the synthetic route for 4-iodo-3-nitrobenzoic acid beginning with toluene.
Consider the reaction between toluene and isobutyl chloride
i) The first step is the reaction between the alkyl halide and AlCl3, which generates a carbocation. Show how this carbocation is formed.
ii) The carbocation generated in part (i) undergoes a transformation. Explain this transformation and give the structure of the new carbocation formed.
iii) Write the mechanism for the reaction that takes place between the generated
carbocation and toluene.
iv) Identify the major product and explain why this product would be formed in higher yield.
What are the bond angles and lengths of pyruvic acid? (NOT the definitions, the actual numbers!)
Angles and lengths for all bonds, please.
Write the formulas and the names of the products for the following two Addition Reactions:
CH3 - CH2 - CH2 - CH = CH2 + Br - Br(l) --------->
Pent -1- ene
What treatment/s do you think undergone protein denaturation?
