transmitting an impulse - action potential and hyperpolarisation

Question 1 of 9

1

First, sodium gated channels open

Select one of the following:

True
False

Explanation

Question 2 of 9

1

❌ ions flow ❌ the concentration gradient into the axon through the gated channels

Drag and drop to complete the text.

Sodium

potassium

down

up

Explanation

Question 3 of 9

1

Fill the blank space to complete the text.

The build up of positive ions inside the axon more gated channels

Explanation

Question 4 of 9

1

Fill the blank space to complete the text.

The potential difference across the membrane is now +mV

Explanation

Question 5 of 9

1

Select from the dropdown list to complete the text.

The axon is now ( depolarised, polarised, repolarised )

Explanation

Question 6 of 9

1

Select from the dropdown lists to complete the text.

During ( repolarisation, depolarisation ), the ( sodium, potassium ) gated channels close and the sodium permeability returns to its usual ( low, high ) state

Explanation

Question 7 of 9

1

Select from the dropdown lists to complete the text.

( potassium, sodium ) gated channels ( open, close ) and potassium ions move out of the axon down the electrochemical gradient and potassium concentration gradient, ( attracted, repelled ) by the negative charge outside of the axon.

Explanation

Question 8 of 9

1

This makes the inside of the cell more ❌ than the outside as a lot of sodium and potassium ions are ❌ of the cell. The cell is now ❌.

Drag and drop to complete the text.

negative

positive

outside

inside

repolarised

depolarised

Explanation

Question 9 of 9

1

Select from the dropdown lists to complete the text.

The membrane is ( highly, not highly ) permeable to potassium ions at this stage so too ( many, few ) move out of the cell. This makes the potassium gated channels close and the potassium diffuse back ( into, out of ) the axon in order to restore the resting potential. If there has been a build up of sodium inside the cell due to many successive action potentials then the ( sodium-potassium pumps, magical forces ) start working once more.

	Created by Alice Storr about 7 years ago

- Psychology Quiz on transmitting an impulse - action potential and hyperpolarisation, created by Alice Storr on 20/04/2017.

transmitting an impulse - action potential and hyperpolarisation

Question 1 of 9

First, sodium gated channels open

Select one of the following:

Explanation

Question 2 of 9

❌ ions flow ❌ the concentration gradient into the axon through the gated channels

Drag and drop to complete the text.

Explanation

Question 3 of 9

Fill the blank space to complete the text.

The build up of positive ions inside the axon more gated channels

Explanation

Question 4 of 9

Fill the blank space to complete the text.

The potential difference across the membrane is now +mV

Explanation

Question 5 of 9

Select from the dropdown list to complete the text.

The axon is now depolarised polarised repolarised( depolarised, polarised, repolarised )

Explanation

Question 6 of 9

Select from the dropdown lists to complete the text.

During repolarisation depolarisation( repolarisation, depolarisation ), the sodium potassium( sodium, potassium ) gated channels close and the sodium permeability returns to its usual low high( low, high ) state

Explanation

Question 7 of 9

Select from the dropdown lists to complete the text.

potassium sodium( potassium, sodium ) gated channels open close( open, close ) and potassium ions move out of the axon down the electrochemical gradient and potassium concentration gradient, attracted repelled( attracted, repelled ) by the negative charge outside of the axon.

Explanation

Question 8 of 9

This makes the inside of the cell more ❌ than the outside as a lot of sodium and potassium ions are ❌ of the cell. The cell is now ❌.

Drag and drop to complete the text.

Explanation

Question 9 of 9

Select from the dropdown lists to complete the text.

Explanation

The axon is now ( depolarised, polarised, repolarised )

During ( repolarisation, depolarisation ), the ( sodium, potassium ) gated channels close and the sodium permeability returns to its usual ( low, high ) state

( potassium, sodium ) gated channels ( open, close ) and potassium ions move out of the axon down the electrochemical gradient and potassium concentration gradient, ( attracted, repelled ) by the negative charge outside of the axon.