006 Donnan Equilibrium and Driving Force

006 Donnan Equilibrium and Driving Force

Donnan Equilibrium? Driving Force? What in the world do those things mean? Well, you’re about to find out. In this video I explain the concept of Donnan equilibrium and show how that leads to the Driving Force that’s responsible for generating an Action Potential, otherwise known as the Nerve Impulse. If you want to know even more details about Donnan Equilibrium, check out my Notes on the Nervous System.

93 comments
MUKHLESUR RAHMAN
MUKHLESUR RAHMAN

Sir you are really awasum....Salute to u...Thnx for ur great help....

RuthmcEvoy
RuthmcEvoy

such a happy video ! the visuals really help me to remember the facts ! . Thank you for making them :D !

bdemare00
bdemare00

for questions about the define 58mV, look at the netnst equation ;)

Lana
Lana

You mentioned that the Na+ needs to reach a donnan equilibrium of 58MV, and when it is not near the resting membrane potential state of -50 to -80MV, the NA+ feels uncomfortable. Thus, causing sodium ions to rush into the cell. However, how does rushing into the cell make it "positive?" I thought the point of sodium to move into the cell was to become more comfortable, which meant reaching -50 to -80MV? Thank you in advance!

Neil
Neil

What is Actin and Myosin in simple language? What are their roles and uses in our body especially muscle?

Dosiyev
Dosiyev

Bad video ...some mistakes

Dosiyev
Dosiyev

Bad video ...some mistakes

Dosiyev
Dosiyev

Bad video ...some mistakes

Praw48
Praw48

TERRIBLE puns XD but a really helpful video. Thank you :)

Praw48
Praw48

TERRIBLE puns XD but a really helpful video. Thank you :)

Praw48
Praw48

TERRIBLE puns XD but a really helpful video. Thank you :)

InteractiveBiology
InteractiveBiology

The statement I think I made was that the Membrane potential is at the Equilibrium potential for Sodium. Not 100% sure what you are asking though.

selenaddict
selenaddict

Can someone explain me why we say that sodium is at is own equilibrium'?? when we consider only K+ and Na+ we say that there s no equilibrium , coz we say that membrane potentiale isnt an equilibrium potential ..am i wrong??in fact in the membrane state of rest there s flow of Na+ trhought the membrane to the inner surface of the membrane..

InteractiveBiology
InteractiveBiology

@selenaddict The statement I think I made was that the Membrane potential is at the Equilibrium potential for Sodium. Not 100% sure what you are asking though.

InteractiveBiology
InteractiveBiology

The statement I think I made was that the Membrane potential is at the Equilibrium potential for Sodium. Not 100% sure what you are asking though.

InteractiveBiology
InteractiveBiology

@selenaddict The statement I think I made was that the Membrane potential is at the Equilibrium potential for Sodium. Not 100% sure what you are asking though.

selenaddict
selenaddict

Can someone explain me why we say that sodium is at is own equilibrium'??
when we consider only K+ and Na+ we say that there s no equilibrium , coz we say that membrane potentiale isnt an equilibrium potential ..am i wrong??in fact in the membrane state of rest there s flow of Na+ trhought the membrane to the inner surface of the membrane..

selenaddict
selenaddict

Can someone explain me why we say that sodium is at is own equilibrium'?? when we consider only K+ and Na+ we say that there s no equilibrium , coz we say that membrane potentiale isnt an equilibrium potential ..am i wrong??in fact in the membrane state of rest there s flow of Na+ trhought the membrane to the inner surface of the membrane..

ediniz101
ediniz101

isnt sodium moving into the cell because of concentration gradient? and its being stopped by its charge potential?

ediniz101
ediniz101

isnt sodium moving into the cell because of concentration gradient? and its being stopped by its charge potential?

ediniz101
ediniz101

isnt sodium moving into the cell because of concentration gradient? and its being stopped by its charge potential?

Tapahtumahorisontti
Tapahtumahorisontti

Correct me if I'm wrong but shouldn't Donnan equilibrium require at least two permeable ions and one non-permeable anion on either side?

Tapahtumahorisontti
Tapahtumahorisontti

Correct me if I'm wrong but shouldn't Donnan equilibrium require at least two permeable ions and one non-permeable anion on either side?

Tapahtumahorisontti
Tapahtumahorisontti

Correct me if I'm wrong but shouldn't Donnan equilibrium require at least two permeable ions and one non-permeable anion on either side?

Tapahtumahorisontti
Tapahtumahorisontti

Correct me if I'm wrong but should Donnan equilibrium require at least two permeable ions and one non-permeable anion on either side?

Tapahtumahorisontti
Tapahtumahorisontti

Correct me if I'm wrong but should Donnan equilibrium require at least two permeable ions and one non-permeable anion on either side?

InteractiveBiology
InteractiveBiology

Thanks a bunch. Glad you are enjoying the videos. Stay subscribed for more :)