Members of the multi pass, G protein-linked family of receptors include the muscarinic cholinergic and J3-adrenergic receptors and rhodopsin. Which of the following characterizes these receptors?
A
They possess a single hydrophobic transmembrane segment in the form of an a helix
B
They can activate plasma membrane-bound enzymes or ion channels
C
They posses an intracellular ligand-binding domain