The increase of second messengers’ (cAMP, cGMP, Ca2+ etc.) concentration leads to:
a) Inhibition of intracellular protein kinases and protein phosphorylation
b) Proteinkinases activation and protein phosphorylation
c) Blocking of interaction between a receptor and an effector
d) Antagonism with endogenous ligands
The correct answer is b) Protein kinases activation and protein phosphorylation.
Increased concentrations of second messengers like cAMP, cGMP, and Ca2+ typically lead to the activation of protein kinases and subsequent protein phosphorylation, which influences various cellular processes.