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
Classification of Enzymes It has been a long tradition  of giving enzymes names ending in 'ase'. The only major exception to this 'ase' is the proteolytic enzymes, whose names

what is reproductive system? what is urinary System? What is Nervous system

M protein of rheumatogenic GAS has distinct structural characteristics that are akin to human heart tissue, particularly sarcolemmal membrane proteins and cardiac myosin. The major

Disorders of motor neurons and the spinal cord A number of movement disorders are produced by damage either to the spinal cord or to cortical projections to the spinal cord. Th

Define the Armamentarium a) Micro-mirrors (magnification: x 40, Size: 0.5) b) Micro-probe c) Micro-blades, tissue retractors d) Burs e) Retrograde Tips "round bur

Define Risk assessment Risk  assessment  has  been  described  as  the process  of  organizing  information concerning a particular  risk in  a systematic way  so  that the dec

Question 1: What is the benefit of alternative splicing? Could there also be drawbacks of Alternative splicing? If yes, mention the same. Definitions of alternative splic

How do homeotic genes regulate development in Drosophila? Homeotic genes code for regulatory proteins that are thought to control the rate of cell division in various body area

Q. What is the function of the immune system? The immune system performs specific defense against agents the antigens that are harmful to the body or foreign. Exogenous anti

In what manner is the ecosystem concept useful in the study of environment