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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 Hannah T. • Biology tutor
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What is nucleophile?

A nucleophile is a species which can donate a lone pair of electrons to an electron deficient species, known as an electrophile. By doing this, a chemical bond is formed.An example of a reaction involving a ...
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Answered by Claire S. • Chemistry tutor
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A Definitive Guide to Differentiation

Overview: Differentiation Differentiation is a very useful mathematical technique extensively applied in various fields including economics, science, technology and engineering. Examples range from obtaining...
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Answered by Dominic D. • Maths tutor
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what factors effect the rate of transpiration?

1) Wind- strong winds blow the evapourated water away from the leaf so that when it condenses, it will not go back into the leaf via the stoma 2) Temperature- high temperatures lead to higher rates of transp...
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Answered by Jasmine M. • Biology tutor
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What are the types of accents?

In spanish, there are three types of accents: stressed accent (prosódico), ortographic accent (ortográfico) and diacritic accent (diacrítico). The stressed accent is used for pronunciation only, it is never ...
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Answered by Carla C. • Spanish tutor
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