Top answers

All subjects
All levels

Biology A-level: describing the action potential

At rest K+ that is going out of cell clamps the membrane potential negative (e.g. -70 mV)An external factor (e.g. synaptic activity) causes the membrane to depolarise slightly. If the voltage reaches thre...

AM
Answered by Abubakar M. Biology tutor
3317 Views

Explain how a coordinate bond forms

A coordinate bond is a bond formed through the donation of a lone pair of electrons from an atom bonding to another atom which has an empty orbital.The lone pair from one atom is donated to the empty orbi...

TM
Answered by T M. Chemistry tutor
6050 Views

What is an autotroph?

An organism that produces its own food

WC
Answered by Will C. Biology tutor
3329 Views

What elements make up the halides?

Flourine, chlorine, bromine, iodine, astatine

WC
Answered by Will C. Chemistry tutor
2412 Views

How do you find the volume of a cylinder?

pi x r2 x height

WC
Answered by Will C. Maths tutor
3636 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning