MYTUTOR SUBJECT ANSWERS

227 views

Explain how an impulse is transmitted between nerve cells.

An impulse reaches the pre-synaptic neurone, as it does so, the impulse stimulates voltage-gated calcium channels to open, allowing an influx of calcium ions into the pre-synaptic bouton. This stimulates vesicles containing ACh to move towards the pre-synaptic membrane and fuse with it, releasing the ACh into the synaptic cleft via exocytosis. Once in the synaptic cleft, the ACh diffuses across and binds to sodium receptors on the post-synaptic membrane. This causes sodium channels on the membrane to open, allowing an influx of sodium into the neuron, eventually resulting in depolarisation and the creation of an impulse. 

Jasmine K. A Level Psychology tutor, GCSE Biology tutor, A Level Biol...

5 months ago

Answered by Jasmine, an A Level Biology tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

162 SUBJECT SPECIALISTS

Nehemie M. A Level Biology tutor, GCSE Biology tutor, IB French tutor...
£20 /hr

Nehemie M.

Degree: Biochemistry with a Professional Placement (Bachelors) - Bath University

Subjects offered:Biology, French

Biology
French

“I am university student passionate about Biology and Chemistry who also speaks French!!!”

MyTutor guarantee

£20 /hr

Michelle M.

Degree: Biological Sciences (Bachelors) - Edinburgh University

Subjects offered:Biology

Biology

“About me: I am a third year biological science student at the University of Edinburgh who is planning to continue on as a pHD candidate in the Life Sciences, maybe biotechnology, mammalian synthetic biology, molecular neuroscience or ...”

£20 /hr

Bethany R.

Degree: Biology (Bachelors) - Bristol University

Subjects offered:Biology, Spanish

Biology
Spanish

“I help students achieve the best results they can, simple as that! My tutoring style is flexible and I'm happy to try any approach that helps you.”

MyTutor guarantee

About the author

£20 /hr

Jasmine K.

Degree: International Relations (Bachelors) - Birmingham University

Subjects offered:Biology, Psychology+ 1 more

Biology
Psychology
Maths

“About Me Hi! I’m an International Relations student at the University of Birmingham. I’ve always had a passion for learning and knowledge and I hope my tutorial sessions will inspire that same love in you! I am a friendly and approac...”

MyTutor guarantee

You may also like...

Other A Level Biology questions

How do plant stomata open and close?

(Biology A-level) What are the different types of T cell and what is their function?

How do mutations make non-functional enzymes?

Maltose is hydrolysed by the enzyme maltase. Explain why maltase catalyses only this reaction.

View A Level Biology tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok