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Allosteric enzymes are multi-subunit enzymes with "allo" or other sites, to which biochemicals may bind. When these biochemicals, or allosteric effectors, bind, they change the conformational structure of the enzyme, which, in turn, changes the activity of the enzyme. There are many allosteric effectors of allosteric enzymes in glycolysis, the TCA cycle, and gluconeogenesis. Choose 3 different biochemicals that act as allosteric effectors to influence 2 different metabolic pathways simultaneously, and for each allosteric effector describe:c. The structural and functional consequences of the allosteric effector binding to the allosteric enzymes.d. The metabolic consequence (i.e., what happens to the flux of the metabolic pathway) of the allosteric effector binding to the allosteric enzyme.
At what temperature will the bottom of a column of mercury of height 30.0 feet be expected to freeze? Use the data given below for mercury:
contains air at a pressure of 171 kPa and a temperature of 293 K. How many moles of air are in it? Also, how many molecules of air does it contain?
How many moles of copper atoms were lost? ii. The Faraday constant. iii. The charge of one electron. iv. The mass of one electron.
completely, showing all bonds, electrons, and charges in reactants and products. Draw a reaction arrow between the reactants and products and plus signs between each reactant and each product.
How many grams (g) of sucrose (C12H22O11) should be dissolved in 433.6 g water to produce a solution that freezes at 1.93 ºC above the boiling point of water? Kb = 0.512 ºC/molal.
The vapour pressure of a substance at 20.0 oC is 49.3 kPa and its enthalpy of vaporisation is 40.6 kJ mol-1. Estimate the temperature at which its vapour pressure is 80.0 kPa
A typical automobile gets 30 miles per gallon of gas and drives 12,000 miles every year. Assuming that octane (C8H18, density 0.7025 g cm-3) is a principal component of gasoline
Why is there a difference in water soluility when looking at the structure of methyl ethyl ketone and chlorobenzene. Methyl ethyl ketone has a water solubility of 268 g/L, while chlorobenzene has a water solubility of 0.47 g/L.
A buffer was prepared by adding 2.4 g of ammonium nitrate to 100 mL of 0.30 M ammonia (Kb = 1.8 x 10^-5). To this solution was then added 10.0 mL of 0.30 M sodium hydroxide, what is the new pH
Consider the formation of n-butyl alcohol and NaBr in the presence of H2SO4. If you start with 1.31g of n-butyl alcohol and end up with 1.79g of n-butyl bromide
Calculate teh energy absorbed in (kJ/mol) by a carbon dioxdie molecule that has absorbed a single photon of Thermal IR light having wavelength of 15 micrometers.
A catalyst may be defined as a substance that enhances the rate of a chemical reaction without being consumed in the process. By this definition, a catalyst would have an infinite lifetime. The ozone decomposition catalysts
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