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A synapse is a small gap between neurones (nerve cells). Information is passed along the neurone as an electrical impulse, but to get from one neurone to the next, the information is converted into a chem...

Osmosis is the net movement of water molecules from an area of high water potential to low water potential, commonly across a partially permeable membrane such as a cell's surface membrane.

As part of homeostasis, it is vital for the human body to maintain blood glucose levels within a narrow range. The 2 main hormones involved are insulin, when glucose levels are too high, and glucagon, whe...

• Vaccines contain dead or inactive forms of a pathogen. - These dead or inactive forms stimulate the white blood cells to produce antibodies against the pathogen. - If a person is infected by the pat...

Neurones are nerve cells that carry information as tiny electrical signals. There are three different types of neurones, each with a slightly different function: sensory neurones carry signals from recept...