A) a stimulus interacting with peripheral membrane proteins.
B) ion channels present in the membrane.
C) the establishment of a transmembrane potential.
D) ions moving up their concentration gradient.
E) none of these.

A) mechanically gated.
B) ion gated.
C) voltage-gated.
D) ligand-gated.
E) receptor-activated.

A) is involved in converting stimulus energy into action potentials.
B) is specialized to respond to a particular sensory modality.
C) can often be found in a sense organ grouped with other cells responsive to the same adequate stimulus.
D) all of these.
E) none of these.