2.1.4: Action Potentials

Last updated 24 days ago

16 questions

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2.1.4: Action Potentials

Last updated 24 days ago

16 questions

Question 5

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

active transport

facilitated diffusion

osmosis

diffusion

Question 6

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

-30mV

+55mV

-70mV

+40mV

Question 10

10.

Action potentials run along the from to ____.

axon, axon terminals, dendrites

axon terminals, axon, dendrites

axon, dendrites, axon terminals

dendrites, axon, axon terminals

Question 11

11.

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

chemical, negative

electrical, negative

chemical, positive

electrical, positive

Question 12

12.

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

direction, repolarization

direction, depolarization

charge, depolarization

charge, repolarization

Question 13

13.

When is the potassium channel open?

during depolarization only

during repolarization only

during rest only

all the time

Question 14

14.

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

Depolarizarion

Hyperpolarization

Resting Potential

Repolarization

Question 15

15.

The sodium-potassium pump....

Sends (Na+) into the cell

Sends (K+) into the cell

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

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

Question 16

16.

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

Question 1

What is this?

electrical channel

potassium ion channel

sodium ion channel

sodium-potassium pump

Question 2

What is this strucure?

axon

cell membrane

cell body

dendrites

Question 3

What is this structure?

sodium potassium pump

electric channel

sodium ion channel

potassium ion channel

Question 4

What is this structure?

potassium ion channel

electric channel

sodium potassium pump

sodium ion channel

Question 5

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

active transport

facilitated diffusion

osmosis

diffusion

Question 6

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

-30mV

+55mV

-70mV

+40mV

Question 7

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

A

B

C

D

Question 8

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

sodium, repolarization, potassium

potassium; repolarization; sodium

Potassium, depoloarization, sodium

Sodium, depolarization, potassium

Question 9

What letter on the graph represents the Hyperpolarization phase?

B

D

E

A

Question 10

10.

Action potentials run along the from to ____.

axon, axon terminals, dendrites

axon terminals, axon, dendrites

axon, dendrites, axon terminals

dendrites, axon, axon terminals

Question 11

11.

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

chemical, negative

electrical, negative

chemical, positive

electrical, positive

Question 12

12.

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

direction, repolarization

direction, depolarization

charge, depolarization

charge, repolarization

Question 13

13.

When is the potassium channel open?

during depolarization only

during repolarization only

during rest only

all the time

Question 14

14.

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

Depolarizarion

Hyperpolarization

Resting Potential

Repolarization

Question 15

15.

The sodium-potassium pump....

Sends (Na+) into the cell

Sends (K+) into the cell

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

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

Question 16

16.

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

Question 1

What is this?

electrical channel

potassium ion channel

sodium ion channel

sodium-potassium pump

Question 2

What is this strucure?

axon

cell membrane

cell body

dendrites

Question 3

What is this structure?

sodium potassium pump

electric channel

sodium ion channel

potassium ion channel

Question 4

What is this structure?

potassium ion channel

electric channel

sodium potassium pump

sodium ion channel

Question 7

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

A

B

C

D

Question 8

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

sodium, repolarization, potassium

potassium; repolarization; sodium

Potassium, depoloarization, sodium

Sodium, depolarization, potassium

Question 9

What letter on the graph represents the Hyperpolarization phase?

B

D

E

A

2.1.4: Action Potentials

2.1.4: Action Potentials

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?

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?

What is this strucure?

What is this structure?

What is this structure?

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 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.