Compared to the normal situation, in which actin monomers carry ATP, what do you predict would happen if actin monomers that bind a nonhydrolyzable form of ATP were incorporated into actin filaments?

Actin filaments would grow longer.

Explanation:

This is because the addition of monomers bearing a non-hydrolyzable ATP form will result in longer actin filaments resulting in stabilization Filament monomer interactions, filament stabilization and depolymerization inhibition.