Chapter 45 - Sensory Systems - 45.1 - Sensory Receptor Cells Convert Stimuli into Action Potentials - 45.1 Recap - Learning Outcomes - Page 963: 1

The receptor proteins in ionotropic sensory pathways directly open or close ion channels when activated. In metabotropic pathways, the activation of a receptor protein triggers a signal transduction cascade that will indirectly cause ion channels to open or close.

The receptor proteins in ionotropic sensory pathways directly open or close ion channels when activated. In metabotropic pathways, the activation of a receptor protein triggers a signal transduction cascade that will indirectly cause ion channels to open or close.