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 major biological functions in which chlorine ions participate? Like sodium cations, chlorine anions actively participate in the regulation of the osmolarity of

Q. What are some diseases caused by abnormal GH secretion by the hypophysis? In childhood deficient GH secretion may lead to delayed growth and in severe cases to nanism that i


Q Are bacteria the only prokaryotic beings? Prokaryotic beings are classified into two big groups: bacteria and archaebacteria (this last also known as eubacteria). Compared

Define intracellular Fluid or the water within the cells? The intracellular Fluid or the water within the cells makes up about 40-4596 of the total body weight. Because the bod

EXCRETIO N IN AMOEBA - NH 3  is excreted out through plasmalemma. Osmoregulation takes place by contractile vacoule, generally one, towards posterior end, contractile in

Q. What are the effects of somatostatin for the pancreatic hormonal secretion? Somatostatin inhibits both glucagon and insulin secretions.

There are several kinds of pollution, main among them are as follows:

What name is given to the mental processing of sensory information?

Alkaline Phosphatases use water as a second substrate. Why do we still treat their kinetics as if they were for a single-substrate reaction?