hydrological water cycle

Water Cycle or Hydrological Cycle - Water is an indispensable commodity of life. Water determines the distribution, structure and function of organisms in the ecosystem. Water occurs in three phases - solid, liquid (ice/snow) and..

Water is an indispensable commodity of life. Water determines the distribution, structure and function of organisms in the ecosyste..

There are two overlapping water cycles operating in nature. 1) Global water cycle 2) Biological water cycle. Global water cycle does not involve life. Water evaporates from water bodies lik..

Pollution of water is a broad subject dealing with different types of pollutants entering the hydrological cycle. Surface flowing river water, underground water and vast sea water are included in a broad subject of water pollutio..

Oxygen is another essential element for living organisms. It is present in large quantities (20.95% v/v) in the atmosphere and is also seen in bound state in water and as oxides and carbonates in rocks. Dissolved oxygen in water is the source of oxygen for aquatic orga..

It takes place in the mitochondria. The pyruvic acid formed during glycolysis is oxidised and forms carbon dioxide and water. This reaction also releases molecules called the coenzymes: NADH 2 and FADH 2 . The hydrogen atoms associated with these are the hydrogen ato..

The oxidation of pyruvic acid into CO 2 and water is called Krebs cycle..

Kreb's Cycle - The oxidation of pyruvic acid into CO 2 and water is called Krebs cycle. This cycle is also citric acid cycle because the cycle begins with the formation of citric acid. Citric acid is a carboxylic acid containing ..

Organic materials synthesised by the producers are eaten and assimilated by the consumers. With the help of decomposers, all the organic materials in the bodies of the consumers are eventually broken down into inorganic materials. These are then rebuilt into organic compounds by the synthetic activ..

Sulphur Cycle - Sulphur is an important component of most proteins, few vitamins and enzymes. Though sulphur occurs in gaseous form, as hydrogen sulphide (H 2 S) and sulphur dioxide (SO 2 ), the residence time of sulphur in atmosphere is very small (about 4 x..