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answer should include the use of helicase to 'unwind' DNA, breaking of hydrogen bonds, template and/or coding strand, free RNA nucleotides in the nucleus binding to exposed bases, attraction of base pairs...

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 create...

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 compleme...

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 p...

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 t...