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- The velocity v with which a protein moves through water under the influence of an electric field varied with values of pH in the range 3.0 < pH < 5.0 according to the expression v/(μm s−1) = a + b(pH) + c(pH)2 with a = 0.80, b = −4.0 × 10−3, and c = −5.0 × 10−2. Identify the isoelectric point of the protein.53. The correct representation of the variation of molar conductivity (y-axis) with surfactant concentra- tion (x-axis) is [CMC = critical micelle concentration]. (a) CMC X CMC (b) CMC X CH CMC K8.30 The diffusion coefficients for a lipid in a plasma membrane and in a lipid bilayer are 1.0x 10-10 m? s and 1.0x 10-° m2 s, respectively. How long will it take the lipid to diffuse 10 nm in a plasma membrane and a lipid bilayer?
- Define the term Brownian motion?I need plots on a graph that has plots of pressure against the inverse of volume. My volumes 1) Raciprocal of 10.0 nm = 1/10.0 =0.100 nm-1 2) Raciprocal of 6.0 nm = 1/6.0 =0.1667 nm-1 3) Raciprocal of 14.4 nm = 1/14.4 =0.069 nm-1 4) Raciprocal of 11.3 = 1/11.3 =0.0885 nm-1 5) Reciprocal of 15.0 nm = 1/15.0 =0.0667 nm-1 The pressures: 5.4 atm 9.6 atm 3.8 atm 5.4 atm 3.5 atmA solution consisting of isobutyl bromide and isobutyl chloride is found to have a refractive index of 1.3931 at 20°C. The refractive indices at 20°C of isobutyl bromide and isobutyl chloride are 1.4368 and 1.3785, respectively. Determine the molar composition (in percent) of the mixture by assuming a linear relation between the refractive index and the molar composition of the mixture.
- What is the strength of the ionic interactions between an ion with 1 positive charges and an ion with 2 negative charges, when the distance between them is 19.4 nanometers and the solvent is water, at 25 oC with a dielectric constant of 78.5?The molar mass of an enzyme was determined by dissolving it in water, and measuring the height, h, of the resulting solution drawn up a capillary tube at 20 °C. The following data were obtained.C/(mg cm-3) 3.221 4.618 5.112 6.722h/cm 5.746 8.238 9.119 11.990The osmotic pressure may be calculated from the height of the column, ∏= hpg, taking the mass density of the solution as p = 1.000 g cm-3 and the acceleration of free fall as g = 9.81 m s-2. Determine the molar mass of the enzyme.If a particular 150 amino acid polypeptide is known to sample 4 preferred states as it folds into its native protein conformation, and if 10¹5 conformations can be sampled per second, then how many hours would it take for this protein to fold according to Leventhal? 8 × 10107 07 x 10⁹⁰ 4 x 1023 6 x 10¹7
- 1. Estimate the flux (mg/cm^2/s) by diffusion of a hydrophobic anti-cancer drug through a lipid bilayer membrane. (Assume the diffusion coefficient for steroid in the lipid bilayer is 2x10-6 cm2 /s, and that the concentration is 2 ng/mL on the outside of the membrane and 0 on the inside)The velocity v with which a protein moves through water under the influence of an electric field varied with values of pH in the range 3.0<pH<7.0 according to the expression v/( ųms-1)=a+b(pH)+c(pH)^2+ d(pH)^3 with a=0.50, b=-0.10, c=-3.0*10^-3, and d=5.0*10^-4. Identify the isoelectric point of the protein.The drift speeds of the mitochondrial protein MMF1-P40185 through an aqueous solution at different values of pH are given below. Identify the isoelectric point.