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What is\xa0importance of\xa0plasma\xa0proteins

Answer» It helps to transport hydrophilic or lipophyllic molecules across the membtane
The proteins present in the plasma of human blood are a mixture of simple proteins, glycoproteins, lipoproteins and other conjugated proteins are called “Plasma Proteins“. These may be separated by salt precipitation, immunological technique and electrophoresis.Functions of Plasma Protern :\tProtein Nutrition:\xa0Plasma proteins act as a source of protein for the tissues, whenever the need arises\tOsmotic Pressure and water balance:\xa0Plasma proteins exert an osmotic pressure of about 25 mm of Hg and therefore play an important role in maintaining a proper water balance between the tissues and blood. Plasma albumin is mainly responsible for this function due to its low molecular weight and quantitative dominance over other proteins.\tBuffering action:\xa0Plasma proteins help in maintaining the pH of the body by acting asampholytes. At normal blood pH they act as acids and accept captions.\tTransport of Lipids:\xa0One of the most important functions of plasma proteins us to transport lipids and lipid soluble substances in the body.\tTransport of other substances:\xa0In addition to lipids, plasma proteins also transport several metals and other substances α2-Globulins transport copper (Ceruloplasmin), bound hemoglobin (haptoglobin) and thyroxine (glycoprotein) and non-heme iron is transported by transferrin present in β-globulin fraction. Calcium, Magnesium, some drugs and dyes and several cations and anions are transported by plasma albumin.\tBlood Coagulation:\xa0Prothrombin present in α2-globulin fraction and fibrinogen, participate in the blood clotting process as follows.


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