Top answers

Why do nerve impulses travel faster in myelinated neurons?

The myelin sheath is a fatty layer made up of the hugely expanded plasma membrane of schwann cells which surround the axon of neurons. The axon is unprotected where the sheath of one cell meets the next and ...
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Answered by Dolcie P. • Biology tutor
5586 Views

Rutherford’s alpha particle scattering experiments gave what evidence about an atom?

Before we can look at the evidence we need to look at the observations from the experiment. During the session we will go through the experiment and then the observations to deduce the atom theory - and how ...
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Answered by Anmol S. • Physics tutor
2709 Views

What is a test for iron(III) compounds?

Using thiocyanate ions to give a red complex. During the session I will go through the reaction mechanism and evaluation of soluble / insoluble products.
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Answered by Anmol S. • Chemistry tutor
4858 Views

How do I integrate 4x*exp(x^2 - 1) with respect to x?

During the session I would go step by step through the integration by substitution.
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Answered by Anmol S. • Maths tutor
3935 Views

When to use the present participle (or gerund) in French and how is it different to the English gerund (ING-form)?

The French gerund is a verb form that ends with -ant. Just like the ING-form in English, it has various uses. First, it can express a progressive action (an action that is taking place/in the process of happ...
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Answered by Fanny T. • French tutor
3945 Views