Biochemistry Which of the following statements best describes a G protein? All G proteins A Consist of an A, B and y subunit and the primary difference among them resides in the B subunit B Are associated with cellular membranes C Do not play a role in amplification of a hormonal signal D Play a role in regulating cyclic adenosine monophosphate (cAMP) levels 💡 Explanation Which of the following statements best describes a G protein? All G proteins ✓ Correct Answer: B. Are associated with cellular membranes