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An organism that can cause disease - e.g. virus, bacterium, fungus

An action potential is an all or none response which has a threshold voltage which needs to be reached by the stimulus. A stimulus will call depolarisation of a nerve axon. This is caused on the entry of ...

The cytoplasm of both cells has a higher osmolarity/ lower water potential than the distilled water, this causes water to enter the cells via osmosis along the water gradient. The red blood cell is surrou...

Inspiration and expiration are the terms used to describe breathing in and out. The way in which we breathe depends entirely upon a pressure gradient that determines the direction of air ...

In the nucleus, DNA helicase breaks hydrogen bonds between the bases on DNA causing the DNA strand to unwind.The template strand acts as a template for mRNA production during which complimentary nucleotid...