Question

question
which of the following statements about beta receptors is false?
answer
they are stimulated primarily by norepinephrine.
there are 2 - 3 subtypes.
they are sensitive to epinephrine.
they are found on the plasmalemma.
i dont know yet

Explanation:

Beta receptors are G - protein coupled receptors found on the cell membrane (plasmalemma). There are three subtypes: β₁, β₂, and β₃. They are sensitive to both epinephrine and norepinephrine. However, β receptors are stimulated more potently by epinephrine than norepinephrine.

Answer:

They are stimulated primarily by norepinephrine.