TLS Online TPP Program

#Question id: 31029


All GPCR signal transduction pathways share the following common elements. which of the following is incorrect regarding GPCR? 

#Unit 4. Cell Communication and Cell Signaling
  1. A membrane-imbedded receptor that contains 7 TM α helices
  2. A heterotrimeric G protein, which functions as a receptor-activated switch 
  3. A cytosolic effector protein
  4. Proteins that participate in amplification and desensitization of the signaling pathway