Notes for myself and anyone else interested: - Sodium/ potassium pumps in the axon actively transfer Na+ out of the cell increasing and K+ into the cell. - K+ ions move out of the axon through K+ channels along the concentration gradient - This results in lesser concentrations of positive ions in the axon, making the inside of the axon more negative than the outside - K+ ions are pulled back into the axon due to the electrochemical gradient - The electrochemical and concentration gradients counteract each other and so there is no net movement of K+ - Potential difference of -70mV is maintained, as the inside of the axon is more negative.

@Diorfitzz

7 ай бұрын

why are you doing this in a youtube comment section 💀

@shazmeertv44

Ай бұрын

Didnt ask

love this, my teacher just taught us this and your video helped me grasp the concepts of the topic even more!

@MissEstruchBiology

3 жыл бұрын

That's great! Really glad the video has helped you

Thank you so much for this clear explanation, was so lost until I found your videos. so glad I have this!!

@MissEstruchBiology

3 жыл бұрын

Hi Lily, So pleased it's helped clarify this topic for you 😀

THANK YOU, God bless you. very useful and helpful. didn't really understand it when my teacher taught it

@MissEstruchBiology

2 жыл бұрын

You're so welcome! So pleased it helped you to understand 😀

oh my god, thank you so much for this!! I learnt this on wednesday but it went over my head. after watching this video, i understand it now thank you so much miss estruch!

@MissEstruchBiology

3 жыл бұрын

Great that you put in the effort to research the concept after the lesson to make sure you would understand! Really pleased that it helped 😀

Fantastic video, I missed the lesson on this at school. So this was amazing and explained it fabulously

@MissEstruchBiology

Жыл бұрын

ah amazing ! So pleased it helped you to catch up 😀

Well done!👍

@MissEstruchBiology

4 жыл бұрын

Thanks!

It was amazing, thank you

@MissEstruchBiology

2 жыл бұрын

You're so welcome

We love you Miss Estruch❤❤❤😮

@MissEstruchBiology

7 ай бұрын

ahh thank you

2:14 slight mistake The membrane has a potential difference not the entire neurone and the difference in charge is between the inside and outside of the Axon not the entire neurone.

What’s the difference between a generator potential and an action potential? Also does a generator potential lead to an action potential?

@shazmeertv44

Ай бұрын

Damn , got aired for 2 years

do na+ channels close to maintain resting membrane potential

@MissEstruchBiology

3 жыл бұрын

The Na+ ion channels are voltage-gated, meaning they will open and close when a particular voltage is reached, whereas some of the K+ channels are permanently open. The advantage of this is that it maintains the resting potential.

Hi I was taught that there is a potassium leakage in the membrane that's why more k leaves the cell?. I might just be confused pls clarify

@MissEstruchBiology

2 жыл бұрын

This would be the same concept. Because there are more potassium ion channels present that remain open potassium ions can diffuse across.. or leak, but the explanation in this video is just a more detailed explanation. Hope that helps

I'm so confused! Please help me understand how the distribution of ions create the resting potential of a neuron? How can I apply this to a real world example? Maybe teen brain science?

@marco3391

Жыл бұрын

More positively charged ions move out of the axon than into it, therefore creating a negatively charged resting potential (-70mV)

can you please upload the powerpoints on your website

@MissEstruchBiology

3 жыл бұрын

Hi, Thanks for this question. I am aiming to upload the PowerPoints and notes to the sites over the summer

hello euan banks

Miss Estruch you’re a life saver thank you so much for taking your time and making these videos as they help alot especially to us A2 students.🫀

@MissEstruchBiology

2 жыл бұрын

Thank you!!! I'm so pleased you are finding my videos helpful 🙂