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What is the purpose of myelin on a neurone?

The myelin on peripheral neurones come in the form of schwann cells. These schwann cells are essentially coils of fat that sit around the neurone and insulate it, this has two fundamental purposes. 1 - The f...
WH
Answered by Will H. • Biology tutor
3052 Views

What is the difference between a prokaryotic cell and a eukaryotic cell?

Prokaryotic cells are smaller and more simple than eukaryotic cells. They do not contain membrane bound organelles such as mitochondria, endoplasmic reticulum and golgi apparatus. They also do not have a nuc...
AS
Answered by Abbie S. • Biology tutor
4828 Views

How do I know if I've used the correct adjective ending?

There are lots of adjective endings in Italian, so it’s natural to confuse them. First of all, you need to check the gender of the noun you have used. Is it feminine or masculine? Beware, as some nouns don’t...
MC
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Back in 1950s, it was common to have as house cleaning items bleaching solution (containing sodium hypochlorite) and ammonia (used to remove, for example, hair dye stains). However, many people ended up in hospital after using them both, why?

Hypochlorite reacts with ammonia to yield chloramine and water. (emphasise to the students that hypochlorite is an oxidising agent, getting reduced to chloride ions). chloramine is a very toxic gas, since it...
RB
Answered by Radu B. • Chemistry tutor
4063 Views

Describe and evaluate the working memory model of memory (16 marks)

Baddeley and Hitch (1979) introduced their working memory model to challenge the multi store model of memory proposed by Atkinson and Shiffrin . The working memory model is a cognitive model of short term me...
RL
Answered by Rosie L. • Psychology tutor
104562 Views