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Assume that we are comparing the membrane fluidity of lipid bilayers. Rank the fluidity of the following bilayers in the order of increasing fluidity. Explain in each case the rationale behind your prediction
a. A lipid bilayer consisting of phosphatidyl choline molecules containing only 18-carbon saturated fatty acids
b. A lipid bilayer consisting of phosphatidyl choline molecules containing only 16-carbon saturated fatty acids
c. A lipid bilayer consisting of phosphatidyl choline molecules containing only 18-carbon unsaturated fatty acids having single double bond at position 9 in the fatty acid chain
d. A lipid bilayer consisting of phosphatidyl choline molecules containing only 18-carbon unsaturated fatty acids having single double bond at position 16 in the fatty acid chain
A sample of CO2 g in a piston at 7.5 atm and 1090. L is allowed to come to equilibrium against a constant external pressure of 8.3 atm at constant temperature. Calculate the work observed for the volume change in the piston (in kJ).
When measuring horse radish peroxidase you found that a purified preparation has a specific activity of 10mmolar/sec/mg protein. suppose you added to an assay a competitive inhibitor that would not produce a colored product.
Determine How many moles of Fe 3 O 4 could be formed if 9.00 mol iron react with 12.00 mol Oxygen and determine How many grams of methane is required to form 45.5g CHcl 3 ?
a saturated solution of bariumchloride at 30C contains 150g water. how much additional barium chloride can be dissolved by heating
the mechanism to convert 9-fluorenol to 9-methoxy fluorene using a nucleophilic substitution reaction with H2SO4 and methanol.
Write the structure of the compound that would result if the adduct were heated too long in the recrystallization solvent (CH3OH)
The decay rate for carbon 14 in the sample is 14.2 dis/min per graham carbon. In what year was the coffin most likely made? ( Assume the half life of carbon-14 is 5730 years and that the decay rate for carbon 14 in living organisms is 15 dis/min p..
Consider the two equilibria and their equilibrium constants: (1) 2NO2(g) ↔ N2O4(g) KC1 (2) ½N2O4(g) ↔ NO2(g) KC2
What is the chemical definition of a buffer solution? Give an example. 2. The Ka of benzoic acid C7H5O2H, IS 6.5X10^-5. What is the buffer range?
How many grams of F2 are needed to produce 237 g of PF3 if the reaction has a 80.4% yield?
What volume of H2 could be produced at a temperature of 19 oC and a pressure of 764 torr by the reaction of 2.98 g of aluminum with hydrochloric acid.
Calculate the molar solubility of AgCl in a solution made by dissolving 10.0 g of CaCl2 in 1.50 L of solution.
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