As an action potential occurs in one area of the axon, it causes nearby ______ channels to open, initiating another action potential in the neighboring membrane.Multiple choice question.leakvoltage-gatednon-gated
Question
As an action potential occurs in one area of the axon, it causes nearby ______ channels to open, initiating another action potential in the neighboring membrane.Multiple choice question.leakvoltage-gatednon-gated
Solution
The correct answer is "voltage-gated".
Here's why: An action potential is a rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane with a characteristic pattern. Voltage-gated channels are a class of transmembrane proteins that form ion channels, conducting the ions down their electrochemical gradient. They play key roles in shaping the action potentials and other electrical signals by gating the flow of ions across the cell membrane.
So, as an action potential occurs in one area of the axon, it causes nearby voltage-gated channels to open, initiating another action potential in the neighboring membrane.
Similar Questions
As an action potential occurs in one area of the axon, an electrical current to neighboring areas of the membrane initiates ______.Multiple choice question.a graded potentialhyperpolarization of the membraneanother action potential
Each action potential Blank______.Multiple choice question.begins in the synaptic terminal and spreads up the axon to the axon hillockspreads across the entire surface of the membrane so that the entire cell is depolarized at one timeaffects only a small area of the plasma membrane of the cell at a timebuilds upon the previous action potential to create a larger potential change
In response to an action potential, voltage-gated calcium channels Blank______ in the presynaptic cell's axon terminal.Multiple choice question.closeopen
When traveling along an axon, the cell membrane immediately ahead of an action potential depolarizes because of _________blank.Multiple Choicethe sodium/potassium pumpmembrane receptorsdiffusion of sodium currentdecreased membrane permeabilitypotassium efflux
During an action potential the inside of the cell membrane becomes Blank______ charged.Multiple choice question.negativelypositively
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.