2.1.4: Action Potentials

1

What is this?

electrical channel

potassium ion channel

sodium ion channel

sodium-potassium pump

1

The sodium potassium pump restores the resting potential. By which process does this work?

active transport

facilitated diffusion

osmosis

diffusion

1

What is the normal resting potential of a neuron cell membrane?

-30mV

+55mV

-70mV

+40mV

1

At which point on the diagram does depolarization of the axon occur?

A

B

C

D

1

Action potentials run along the from to ____.

axon, axon terminals, dendrites

axon terminals, axon, dendrites

axon, dendrites, axon terminals

dendrites, axon, axon terminals

1

An action potential is __ in nature, with the inside of the neuron being more .

chemical, negative

electrical, negative

chemical, positive

electrical, positive

1

As the neuron fires, there's a reversal in _ as the axon undergoes ____.

direction, repolarization

direction, depolarization

charge, depolarization

charge, repolarization

1

When is the potassium channel open?

during depolarization only

during repolarization only

during rest only

all the time

1

At what stage are both ions present in large concentrations INSIDE the neuron?

Depolarizarion

Hyperpolarization

Resting Potential

Repolarization

1

The sodium-potassium pump....

Sends (Na+) into the cell

Sends (K+) into the cell

Exchanges (K+) & (Na+) during depolarization

Exchanges (K+) & (Na+) during hyperpolarization

1

Which one of the following is involved in maintaining a resting membrane potential?

Na+/K+ ATPase pump moves 3K+ out for every 2Na+ in

Na+/K+ ATPase pump moves 3K+ in for every 2Na+ out

Na+/K+ ATPase pump moves 3Na+ out for every 2K+ in

Na+/K+ ATPase pump moves 3Na+ in for every 2K+ out

2.1.4: Action Potentials

What is this?

The sodium potassium pump restores the resting potential. By which process does this work?

What is the normal resting potential of a neuron cell membrane?

At which point on the diagram does depolarization of the axon occur?

Action potentials run along the from to ____.

An action potential is __ in nature, with the inside of the neuron being more .

As the neuron fires, there's a reversal in _ as the axon undergoes ____.

When is the potassium channel open?

At what stage are both ions present in large concentrations INSIDE the neuron?

The sodium-potassium pump....

Which one of the following is involved in maintaining a resting membrane potential?

What is this?

What is this strucure?

What is this structure?

What is this structure?

The sodium potassium pump restores the resting potential. By which process does this work?

What is the normal resting potential of a neuron cell membrane?

At which point on the diagram does depolarization of the axon occur?

When a membrane potential reaches +30mV, channels open, occurs, and channels close.

What letter on the graph represents the Hyperpolarization phase?

Action potentials run along the from to ____.

An action potential is __ in nature, with the inside of the neuron being more .

As the neuron fires, there's a reversal in _ as the axon undergoes ____.

When is the potassium channel open?

At what stage are both ions present in large concentrations INSIDE the neuron?

The sodium-potassium pump....

Which one of the following is involved in maintaining a resting membrane potential?

What is this strucure?

What is this structure?

What is this structure?

When a membrane potential reaches +30mV, channels open, occurs, and channels close.

What letter on the graph represents the Hyperpolarization phase?

2.1.4: Action Potentials

2.1.4: Action Potentials

What is this?

The sodium potassium pump restores the resting potential. By which process does this work?

What is the normal resting potential of a neuron cell membrane?

At which point on the diagram does depolarization of the axon occur?

Action potentials run along the ______ from ______ to ________.

An action potential is __________ in nature, with the inside of the neuron being more ________.

As the neuron fires, there's a reversal in _____ as the axon undergoes ________.

When is the potassium channel open?

At what stage are both ions present in large concentrations INSIDE the neuron?

The sodium-potassium pump....

Which one of the following is involved in maintaining a resting membrane potential?

What is this?

What is this strucure?

What is this structure?

What is this structure?

The sodium potassium pump restores the resting potential. By which process does this work?

What is the normal resting potential of a neuron cell membrane?

At which point on the diagram does depolarization of the axon occur?

When a membrane potential reaches +30mV, ________ channels open, ________ occurs, and ________ channels close.

What letter on the graph represents the Hyperpolarization phase?

Action potentials run along the ______ from ______ to ________.

An action potential is __________ in nature, with the inside of the neuron being more ________.

As the neuron fires, there's a reversal in _____ as the axon undergoes ________.

When is the potassium channel open?

At what stage are both ions present in large concentrations INSIDE the neuron?

The sodium-potassium pump....

Which one of the following is involved in maintaining a resting membrane potential?

What is this strucure?

What is this structure?

What is this structure?

When a membrane potential reaches +30mV, ________ channels open, ________ occurs, and ________ channels close.

What letter on the graph represents the Hyperpolarization phase?

Action potentials run along the from to ____.

An action potential is __ in nature, with the inside of the neuron being more .

As the neuron fires, there's a reversal in _ as the axon undergoes ____.

When a membrane potential reaches +30mV, channels open, occurs, and channels close.

Action potentials run along the from to ____.

An action potential is __ in nature, with the inside of the neuron being more .

As the neuron fires, there's a reversal in _ as the axon undergoes ____.

When a membrane potential reaches +30mV, channels open, occurs, and channels close.