Sulphur cycle, Biology

Sulphur is one of important of proteins vitamins and hormones. It plays a very crucial role in health of both plants and animals. Most of earth sulphur is tied up in rocks and salts or buried deep in ocean sediments. 

The main steps of sulphur Cycle:

1.        Sulphur enters into atmosphere in the form of H2S, SO2  by both  natural and human activity. Natural activity:  volcanic eruptions, hot springs, decay of dead organisms etc.

Human activity:  industrial, automobile, emissions.

 

2.       In atmosphere SO2 either reacts with O2 and forms sulphur trioxide (SO3) gas or with other chemicals and forms sulphur salts. SO3 finally dissolve in water to produce sulphuric acid (H2SO4).

 

3.      Sulphur in the H2SO4 finally comes down on earth with fog and rainfall. Here it is absorbed by plants in the form of sulphates and utilize in protein synthesis.

 

4.      Animal eat plants and hence sulphur is passed on to animals. Excess of sulphur is excreted out as faecal matter.

 

5.      When animal dies the bacteria decompose it, in anaerobic condition H2S gas is formed and in aerobic conditions SO2-4   IS formed which is used by plants from soil.

 

6.      Sulphur enters the oceans through from earth's atmosphere.

 

Within the oceans, some sulphur cycles through marine communities, moving through the food chain. A portion of this sulphur is emitted back into the atmosphere from sea spray. The remaining is locked to the depth.

Posted Date: 7/11/2012 7:19:45 AM | Location : United States







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

Write discussion on Sulphur cycle
Your posts are moderated
Related Questions
Q. What are examples of the economic and ecological importance of molluscs? Molluscs are important players in several food chains in ecosystems. Many marine molluscs are part o

S-Gene The S-gene has been suggested to be a super gene complex with several linked genes. It is supposed to have at least six (may he more) closely-linked genes which determi

How Bone density affect Osseointegration The most important bone property is density which is influenced by factors such as patient age and genetics. Higher density bones have

Q. What is bathing in Cerebro-Spinal Fluid? The CNS is bathing in Cerebro-Spinal Fluid (or CSF):  similar to plasma, less protein, rich in ascorbic acid, different in ions Na+

How the foams are formed? Formation  of a foam is dependent on a foaming agent in the continuous phase prior to dispersion of gas.  The foaming agent must be adsorbed at the su

Enzymes utilization in Brewing Industry Here, the main starting material is malt, produced by allowing barley seeds to germinate under moist conditions. The reserve starch is b


Explain about the Deuteromycota - Fungi? Deuteromycota - Deuteromycetes or fungi imperfecti reproduce by means of conidia. These have either lost the capacity for sexual reprod


Glycogen synthesis and degradation in the liver and muscle is very similar. Which of the following enzymes is not used in both muscle and liver for these metabolic pathways? -ph