Which of the following is a correct association?
a. adenylyl cyclase activity and the conversion of cAMP to AMP
b. GTPase activity and hydrolysis of GTP to GDP
c. kinase activity and the addition of a tyrosine
d. phosphodiesterase activity and the removal of phosphate groups

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)

What are the similarities between compounds and mixtures?