Pyruvate kinase catalyzes the transfer of a phosphoryl group from phosphoenolpyruvate to adp in the last step of glycolysis, forming pyruvate in the process. vertebrates have several isozymes of pyruvate kinase, which can be allosteric ally inhibited by compounds including atp and acetyl-coa,
what is an effect of camp-dependent protein kinase (pka) inactivation of the liver isozyme but not the muscle isozyme?
a. glycogen synthesis is promoted in the liver as an energy store.
b. glycolysis is inhibited in the liver, but not muscle, when blood sugar is low.
c. under stress (fight-or-flight) conditions, the liver can use glycolysis to break down glucose.
d. phosphate from the dephosphorylation of the liver isozyme is used to generate atp and provide energy for movement.

The bergeron process.

Answer(28.02g/mol);

Radon-222 or rn-222 has a half-life of 3.82 days. to determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days, we calculate the amount of rn-222 remaining after 7.646 days and divide it with the original amount. using 1 gram as a basis and using half-life calculation methods, we can determine that  0.249 or 0.25  grams of rn-222 will remain, and thus the fraction remaining is 0.25 or 1/4.

Use the universal gas law formula: pv = nrt now, the key word in this problem is stp, so at stp, temperature will always be 0 degrees celsius and pressure will always be 1.0 atm or 760 torr. given something is at stp, we already know the two variables pressure and temperature. the other thing we can find with the given information is moles. to find moles, just divide grams by molar mass of the element. 16.0g / 2(16.00)g/mol = 0.5 moles plug the values in to the equation pv = nrt (1.0 atm)( x ) = (0.5 )(0+273=273k) the r value is just a constant for when we use atm, liters, moles and kelvin. i'm assuming you want your answer in liters, but if you dont just move the decimal 3 to the right in your final answer. so when plugging these numbers in to your calculator and trying to find x, you get 11.20665 liters using significant figures the answer is 11.2 liters