Action potentials Flashcards

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1
Q

During resting potential, how many sodium ions are pumped out?

A

3

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2
Q

During resting potential, how many potassium ions are pumped in?

A

2

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3
Q

How many molecules of ATP are required for 3 sodium ions to be pumped out and 2 potassium ions to be pumped in?

A

1

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4
Q

What is the potential difference at the resting potential?

A

-70mV

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5
Q

During resting potential, would you say that the membrane is depolarised, polarised, or hyperpolarised?

A

Polarised

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6
Q

What is the threshold potential difference during depolarisation?

A

-55mV

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7
Q

What is the potential difference from the outside to the inside of the axon during depolarisation?

A

+40mV

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8
Q

During hyperpolarisation, what potential difference is reached?

A

-90mV

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