Blood plasma

Plasma is the liquid part of the blood, it transports dissolved substances around the body. Also it fights against disease and removes unwanted waste materials from cells.
the blood plasma helps to maintain body temperature and control the pH of blood. Another function of plasma is that it contains clotting agents so when blood is exposed to air it will clot. this is to prevent anymore bacteria entering the body.
Plasma contains 90% water and the other 10% consists of glucose, amino acids, vitamins, mineral salts, hormones, antibodies and antitoxins. all of the different substances in the plasma have a job to do. for example; amino acids and glucose travel in the blood so that they can be diffused into areas that need it i.e. if there is muscle tissue damage then the amino acids help to repair it and they help with growth. if there is no damage that needs repairing then the substances will be stored and used later when they are need for anaerobic respiration. the glucose will travel to muscles for storage or they will travel to the liver where the hormones which travel in the plasma will help to turn glucose into glycogen.
Antibodies and antitoxins travel in the blood plasma as this is the most efficient way for them to get to areas of infection quickly.


http://www.ivy-rose.co.uk/HumanBody/Blood/Blood_StructureandFunctions.php