Changes

'''Nutrients in solution''' include the breakdown products of digestion, amino acids, glucose and fatty acids.

'''Nutrients in solution''' include the breakdown products of digestion, amino acids, glucose and fatty acids.

'''Mineral Salts''' in solution include sodium,potassium, calcium,chloride, bicarbonate, sulphate and phosphate. The salts are ions which act to maintain the PH of the blood at 7.4.

'''Mineral Salts''' in solution include sodium, potassium, calcium, chloride, bicarbonate, sulphate and phosphate. The salts are ions which act to maintain the PH of the blood at 7.4.

'''Gases in solution''' include oxygen carbon dioxide. Oxygen is carried mainly by the red blood cells but a small amount is carried dissolved in the plasma. Carbon dioxide is carried by the plasma as carbonic acid and bicarbonate ions.

'''Gases in solution''' include oxygen and carbon dioxide. Oxygen is carried mainly by the red blood cells but a small amount is dissolved in the plasma. Carbon dioxide is carried by the plasma as carbonic acid and bicarbonate ions.

'''Waste products''' carried by the plasma include urea and creatinine which are nitrogenous waste. They are taken to the liver and kidneys where they are removed via the bile or urine.

'''Waste products''' carried by the plasma include urea and creatinine which are nitrogenous waste. They are taken to the liver and kidneys where they are removed via the bile or urine.

'''Hormones and Enzymes''' including cortisol and thyroxine are transported around the body in plasma bound to plasma proteins.

'''Hormones and Enzymes''' including cortisol and thyroxine are transported around the body in plasma bound to plasma proteins.