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Homeostasis- is the principle by which the body maintains a constant internal environment in order to provide optimal conditions for the cells and enzymes to function. Water is taken in via drinking and a...

Translation is a process of protein creation from an RNA strand. This occurs the ribosome, a small organelle that can either be free in the cytoplasm or on the rough endoplasmic reticulum. Messenger RNA t...

An inactive form of the pathogen is injected into the body. The body detects the antigens on the surface of the pathyogen and this triggers the white blood cells (lymphocytes) to produce antibodies to com...

Individual neurons do not physically touch but are connected by synapses. These are small gaps between neurons. Signals or information are passed over the synapse between neurons, which allows information...

A reflex is an involuntary response to a sensory stimulus. The pathway of neurones involved in a reflex is known as a reflex arc. A reflex arc - such as quickly moving your hand away from a hot flame - in...