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
E mb ryonic stem cells (ES): These are pleuripotent cells of early embryo (blastocyst) capable of giving rise to all differentiated cells, including germ line cells. Em

In an investigation to compare the rates at which starch is being broken down by an enzyme    (a) what test is used    (b) how do you know when the reaction

Q. Can you explain Factors responsible for food spoilage? Spoilage, as you would realize, is quite a natural phenomenon. All foods undergo varying degrees of deterioration or s

State the basic properties of Cell The differences of cell types notwithstanding, the similarities among them are more profound. Actually, all cells possess the same basic prop

What is Ionic bonds ? Ionic Bonds :  Ionic bonds hold atoms together in crystals. They form when oppositely charged atoms, or ions, join (opposite charges attract) to equaliz

Define Corneal Xerosis - Micronutrient Deficiencies? This is a sign of severe vitamin 'A' deficiency, in which the cornea loses its normal smooth and glistening appearance and

Explain the Magnesium Deficiency and Toxicity? Deficiency of magnesium is rare for two reasons: frstly, the mineral is widely distributed in the foods, secondly, kidney is able

Valacyclovir (Valtrex) - Valacyclovir is an L-valyl ester of acyclovir that is metabolized to acyclovir after oral administration, resultingin higher serum concentrations than

The client was admitted to the hospital with hypertension (high blood pressure). The development of arteriosclerosis (plaque buildup in the arteries) has increased peripheral resis

How is an Epithelial cell made?