Plasma and its composition, Biology

PLASMA -

  1. It is slightly alkaline non-living intercellular substance which constitutes about 60% part of the blood.
  2. It is a pale yellow but transparent and clear fluid.

COMPOSITION OF PLASMA -

1.      Water - Water alone forms about 90% to 92% ofthe plasma. Solids form about 8% of the plasma.

2.      Mineral Salts- These are chlorides, bicarbonates, sulphates and phosphates of sodium, potassium, calcium, iron and magnesium. All salts constitute about 0.9% of plasma. Buffer of the blood is sodium bicarbonate.

3.      Nutrients - These include glucose, fatty acids, phospholipids, cholesterol, fats, aminoacids, nucleosides, etc. 

4.      Plasma Proteins- They constitute about 7 to 8% part of plasma. These mainly include albumin, globulin, immu- noglobulin, prothrombin and fibrinogen.

5.      Defence Compounds - Immunoglobulins which act as antibodies and some other substances, such as lysozyme (a polysaccharide) and properdin (a large protein) are always found in the plasma. They destroy bacteria, viruses and toxic substances that may enter into the blood from outside.

6.      Excretory Substances - These include ammonia, urea, uric acid, creatine, creatinine, etc.

7.      Dissolved Gases- Water of blood plasma contains oxygen, carbon dioxide and nitrogen in dissolved form.  .

8.      Anticoagulant - Blood plasma contains a conjugated polysaccharide, the heparin which prevents coagulation of blood inside blood vessels.

9.      Hormones - These are secreted and released in blood by endocrine glands.

10.     Vitamins and Enzymes - Different kinds of vitamins and enzymes are present in the blood plasma.

Posted Date: 10/1/2012 3:19:34 AM | Location : United States







Related Discussions:- Plasma and its composition, Assignment Help, Ask Question on Plasma and its composition, Get Answer, Expert's Help, Plasma and its composition Discussions

Write discussion on Plasma and its composition
Your posts are moderated
Related Questions
Q What are the hyphae and the mycelium of pluricellular fungi? The major structures of pluricellular fungi are the hyphae threadlike filaments made of contiguous uni or multinu

DIFFERENCE BETWEEN OPEN SYSTEM AND CLOSED SYSTEM - S .No. C h arac t er O p en system C losed system

What is Paedomorphosis. Explain in brief. When sexually mature adults have characteristics which would normally be associated with the larval stage. It happens since reproducti

Q. What is the difference between facilitated and simple diffusion? Facilitated by which kind of molecule does the term "facilitated" mean? Simple diffusion is the direct passa

Endosperm with Lateral Haustoria In Monochoria, in which the endosperm development is of helobial type, the haustorium is neither chalazal nor micropylar but lateral. The cha

Nitrogen Control of Nitrogen Assimilation N 2 -fixer like Klebsiella pneumoniae and Nostoc can grow with N 2 , NO - 3 or NH + 4 as nitrogen source. You would like to know

Sea weeds Besides lakes, rivers and ponds, India has two thousands kilometers long coastline and wide variety of aquatic plants are abundantly available which are regarded mor

Carpentier -Edwards Valve (C-E) :  This is porcine aortic valve preserved in gluteraldehyde and mounted on flexible stent made of cobalt-chromium-nickel alloy (ELGILOY). Glut

Determine the Food Sources of Folate? Folate occurs naturally in foods. Although folate is found in a wide variety of foods, it is present in a relatively low density except i

Explain the process of metastasis. Define anti-angiogenic drugs and relate the role of medical imaging, if any, in anti-angiogenic drug therapy. State how you envision your particu