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Presume that the binding of one molecule of epinephrine to a seven-transmembrane helix (7TM) receptor (as well called the G protein-coupled receptor, or GPCR) results in the activation of 440 G? subunits. In addition, presume that each activated adenylyl cyclase catalyzes the conversion of 20 ATP molecules to cAMP per second. Presume that each G protein activates a single unique adenylyl cyclase. Compute the number of moles of cAMP that are produced per second.
what is the osmolarity of a solution containing 0.1 m nano3 and 0.2 m nacl? what is the molarity of the solution
the temperature of a household refrigerator is maintained at 0c and the temperature of the room at 25c. the heat
Determine what is the coordination of the cations in the case of a normal spinel and what point defects are possible in the spinel structure?
A typical commercial-grade phosphoric acid solution is 75% phosphoric acid by mass, and has a density of 1.57 grams per milliliter. What are the molarity and molality of H3PO4 in this acid?
If 0.117 g of oxalic acid dihydrate is neutralized by 19.55 mL of a NaOH solution, explain what is the molar concentration of the NaOH solution. Oxalic acid is a diprotic acid. Explain what is the balanced equation
If 69.5 kJ of heat is applied to a 1034 g block of metal, the temperature of the metal increases by 11.4°C. Calculate the specific heat capacity of the metal in J/g°C.
if the average speed of an oxygen molecule is 4280 cmsec at 25c what is the average speed of carbon dioxide molecule at
an empty flask has a mass of 123.4 g. when the flask is filled with water the mass is 211.6 g. if 10.0 g of zinc d
Suppose you measured the pressure with a barometer which was not vertical. You measured the pressure to be 752mmHg and then noticed the barometer
What is the order with respect to each reactant for the following reactions. A) r=[a]2[b] b)r=k c) r=k[a]2
A gas mixture with a total pressure of 765 contains each of the following gases at the indicated partial pressures: , 118 ; , 229 ; and , 187 . The mixture also contains helium gas. What is the partial pressure of helium gas.
Calculate the value of ?So in J/K for the combustion of 1 mole of propane to form carbon dioxide and gaseous water. S (C3H8(g)) = 271.3 S (O2(g)) = 203.1 S (CO2(g)) = 212.9 S (H2O(g)) = 188.0
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