Water, Biology

Water

Water usually forms about 50% to90% part of living protoplasm. Life upon earth originated in the ocean and the conditions of that aqueous primeval environment have been retained by organisms as the basis integral part of their chemistry. All organisms bave been designed around the4 special properties of water. Some important properties of water are.

(1)   As the best solvent in nature, it forms the base fluid matrix of protoplasm. All other constituents of protoplasm are its solutes.

(2)  Benign an ideal dispersion medium. it causes Brownian movement of colloid particles, resulting into their collision and mutual bombardment. This facilitates reactivity between the various compounds necessary maintaining protoplasm in line state. Thus it serves as the essential medium in which all metabolic activities of protoplasm occur.

(3)   It causes streaming or cyclosis in protoplasm, facilitating its  chemical  exchange with the environment, and transportation of from one part of the body to the others.

(4)   Dissociating into H and OH ions, it become a very good electrolytic solvent, making protoplasm amphoteric. Moreover, it itself participates in certain types of chemical reaction particularly in the hydrolytic breakdown of complex compounds.

(5)   Having a high specific heat coefficient. it minimises temperature variations and, thus protects protoplasm against ill effects of sudden rise or fall of temperature in the environment.

Posted Date: 9/26/2012 6:56:40 AM | Location : United States







Related Discussions:- Water, Assignment Help, Ask Question on Water, Get Answer, Expert's Help, Water Discussions

Write discussion on Water
Your posts are moderated
Related Questions
Isolation of dna fragments bound strongly with protein 1.     Through pcr Pcr permits isolation of dna fragments from genomic dna through selective amplification of a spe

what is the effect of insuline in body ?

DIFFERENCE BETWEEN LIVING AND NON-LIVING BEINGS - S .No. C h a ra cte r L i v i n g be ings N o n - l i v i n g be

Define Promoting food security to control under nutrition? Public distribution of food grains through a network of ration shops, particularly to reach the population below the

using a specific example describe how hormones have an important role in the regulation of body functions and also, what happens if there is an over secretion or an under secretion

Copper Copper is an essential trace element required for enzyme systems, iron metabolism, connective tissue metabolism, integrity of the central nervous and immune systems. Co

what are protein? What is the constituential uni. Of protein? Briefly explain the various forms of protein?

SURGERY FOR CORONARY ARTERY DISEASE : Stenotic coronary artery disease (CAD) is caused by the thickening and narrowing of the coronary arteries (Atherosclerosis). Initially it cau

Explain the term Direct Calorimetry? Calorimetry refers to the measurement of the amount of heat evolved or absorbed in a chemical reaction, change of state, or formation of a

Define Phosphorous distribution in plasma? In plasma, phosphorus is distributed in different forms. Figure: Phosphorous distribution in plasma Inorg