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Chemiosmosis is the method which cells use to create ATP for energy. It works a bit like a water wheel creating power. ATP synthase is like a water wheel in the inner membrane of mitochondria which creates A...

Enzymes are proteins that act as biological catalysts: they increase the rate of reactions without being used up themselves. A region on the enzyme, known as the active site, is very specific and complementa...

Platelets come into contact with an area of an artery wall which has become damaged, changing their shape from flattened disks to long thin projections. The platelets stick together, forming a temporary plug...

risk factor is something which increases your chance of developing a particular disease. risk factor of coronory heart disease is diet due to the atheroma developed from the fatty material deposited in the a...

eutrophication is whereby excess feriliser from farmland has run off into areas of water such as lakes or rivers. algae growth is promoted due to the rise in phosphates. in turn the remaining oxygen in the w...