Top answers

All subjects
A Level

Explain the difference between homolytic fission and heterolytic fission.

Homolytic fission:Homolytic fission occurs when the covalent bond breaks evenly, and each of the bonded atoms takes one of the shared pair of

HW
Answered by Hannah W. Chemistry tutor
54853 Views

How do you structure an essay?

(I would usually take an example question such as: "'Alexander II's reforms were, on the whole unsuccessful,' discuss," and use it to explain.) So here, as with most exam essays, two main...

DT
Answered by Daniella T. History tutor
2299 Views

Describe the generation of action potentials in neurons.

When the neuron is stimulated, it causes rapid depolarisation of the cell surface membrane. This will not generate an action potential unless it is large enough to exceed the threshold potential...

HR
Answered by Howard R. Biology tutor
5645 Views

Why is water being a solvent important?

dilute harmful substancestransport in bloodstream and plantsfor metabolic reactions to occurseparation of substancesabsorption of ions etc.

SA
2856 Views

What is the definition of a pathogen and give two examples. (3 marks)

An organism that can cause disease - e.g. virus, bacterium, fungus

TR
Answered by Thomas R. Biology tutor
3366 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