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Biology
GCSE

What is meant by diffusion?

​What is diffusion?

Diffusion is a natural process, definied as the net movement of particles from an area of high concentration to an area of low concentration.

CM
Answered by Callum M. • Biology tutor
10005 Views

Why are enzymes less efficient at temperatures lower than body temperature?

If your body temperature drops, the substrate (the particles that link to the enzyme so that it works) moves slower in your cells because as temperature decreases, so does each individual particle's ki...

CC
5277 Views

Why are food chains rarely longer than three or four stages?

A lot of energy is lost at each level

PW
Answered by Paul W. • Biology tutor
4336 Views

Define 'biomass'

The dry mass of an organism

PW
Answered by Paul W. • Biology tutor
5050 Views

What name is given to the junction of two or more neurones?

Synapse

PW
Answered by Paul W. • Biology tutor
8394 Views

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