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A myelinated axon conducts impulses faster than a non-myelinated axon. Explain this difference:

A myelinated neurone is insulated by a layer of Schwann cells that make up the myelin sheath. This aids in the faster conduction of an action potential down the neuronal axon. Depolarisation of the axon c...

Answered by Hanna P. • Biology tutor

17451 Views

A force of 13.8 N was used to lift a mass 30 cm vertically through a liquid. Calculate the work done in lifting the mass, stating the correct units.

Either from memory or using the formula booklet provided we know Work Done = Force x Distance Moved (in the direction of the force). Therefore we can use the values given and this formula to workout our a...

Answered by Harry G. • Physics tutor

3704 Views

How do I ensure my answer remains analytical rather than descriptive?

It is crucial that you choose a question which has scope for evaluation - perhaps assessing the impact or success of something - and debate. This way in answering the question, you will automatically be a...

Answered by Jessica F. • Extended Project Qualification tutor

5468 Views

Explain the trend in 1st ionisation energy across the period 3 elements, explaining the anomalies of aluminium and sulfur.

The overall trend is that the 1st ionisation energy increases. This is because as the nuclear charge increases, the attraction of the nucleus to the surr...

Answered by Jack W. • Chemistry tutor

9755 Views

Explain the meaning of the law of demand; distinguish between movements along and shifts of the demand curve.

The law of demand states that: 'as a product's price falls, the quantity demanded of the product will rise, ceteris paribus'. In other words, price and quantity demanded of a good are inversely related. T...

Answered by Tom D. • Economics tutor

2091 Views