Which statement regarding heterotrimeric g proteins in a resting state is true?
a. gtp is bound to the α subunit in a complex with both the β and γ subunits.
b. gdp is bound to the α subunit in a complex with both the β and γ subunits.
c. the proteins are in a complex with g protein-coupled receptors.
d. gdp is bound to the β subunit in a complex with both the α and γ subunits.

B) GDP is bound to the alpha subunit in a complex with both the beta and gamma subunits

Explanation:

Heterotrimeric G proteins consist of three (3) distinct subunits, alpha (α), beta (β) and gamma (γ). These proteins couple the activation of diverse types of plasma membrane receptor to a variety of intracellular processes. Basically, most types of neurotransmitter and peptide hormone receptor, as well as many cytokine and chemokine receptors, fall into a superfamily of structurally related molecules, termed G protein-coupled receptors.

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

voluntary muscles are controlled by the cerebellum.