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What is the difference between breathing and respiration?

It is understandable why there is confusion between the two terms as we use the term 'respiratory system' to refer to the lungs and associated structures, even though they are not directly involved in the pr...
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Answered by Ariadne H. • Biology tutor
4045 Views

How does temperature affect enzyme activity?

A low temperatures enzyme activity will be slow but as the temperature rises the enzyme will gain more kinetic energy and hence move around more enabling greater interaction with the substrate. This will res...
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Answered by Amelia W. • Biology tutor
15401 Views

Why is the left side of the heart more prominent than the right side?

There are two sides of the heart and each side (left and right) has two chambers each. The two chambers: atria (top) and a ventricle (bottom). Even though the two sides of the heart have two chambers each, t...
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Answered by Timi S. • Biology tutor
20704 Views

How does natural selection lead to evolution?

Evolution describes the divergence of species by natural selection. It is best to think of this at the level of the gene pool. The gene pool is all the genes contained within a population. The gene pool is a...
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Answered by Michelle M. • Biology tutor
28923 Views

Describe competitive and non-competitive inhibition of enzyme action.

To start with, let’s just quickly define an enzyme. An enzyme is a biological molecule that is able to speed up a reaction. Without the presence of enzymes, certain reactions just wouldn’t be able to take pl...
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Answered by Rowan S. • Biology tutor
12020 Views