Practice question

The correct answer is C: Graded potential in sensory receptor. In Action potential, this idea is central because it matches how the body actually works in everyday teaching examples. Put simply, excitable-cell physiology turns on membranes, ions, and signalling steps, and Graded potential in sensory receptor captures the correct piece of that story. That is why Graded potential in sensory receptor is the option that holds up when you check it against basic physiology. When you revise, say the answer out loud with one short reason attached; that sticks better than rote lists. Remember that physiology questions reward precise language: name the process, the location, and the outcome, then match that to the option text.