Which of the following functions as a regulatory protein by dephosphorylating activated enzymes?

a. Sos protein
b. guanine nucleotide exchange factor
c. receptor tyrosine kinase
d. phosphoprotein phosphatase
e. heterotrimeric G protein phosphorylase

Determine the energy released per kilogram of fuel used. given mev per reaction, calculate energy in joules per kilogram of reactants. consider 1 mole of tritium plus 1 mole of deuterium to be a mole of “reactions” (total molar mass = 5 grams).

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

Using data from seismic waves, geologists have learned that earth’s interior is made up of several