Nitrogen fixation, Biology

Assignment Help:

Nitrogen Fixation

Nitrogen is an essential constituent of living organisms and there is an inexhaustible supply of it in the atmosphere in the free form. Majority of living organisms including humans are incapable of utilising gaseous nitrogen but need organic nitrogen for their nutrition. It is for this reason that the nitrogen fixation or availability of organic nitrogen is critical for the living organisms. Free nitrogen is inert but certain groups of specialised organisms have the ability to utilise gaseous nitrogen fmn the atmosphere. The reduction of gaseous nitrogen or its conversion to organic nitrogen is called nitrogen fixation. The fixed nitrogen is readily utilised by other organems. Incorporation of atmospheric nitrogen into nitrogen compounds by nitrogen fixers such as Azotobacter in aerated soils; Clostridium in unaerated soils; Rhizobium in the nodules of legume roots and by a number of blue green algae such as Nostoc and Anabaena, is the most important step to ensure nitrogen supply for the living organisms. The quantum of biological nitrogen-fixation has direct effect on soil fertility.


Related Discussions:- Nitrogen fixation

Nutrient requirement during angina pectoris, Q. Nutrient requirement during...

Q. Nutrient requirement during angina pectoris? The nutrient requirement here is the same as discussed earlier, however, to sum up it can be said that we need to restrict calor

Explain basic stains (cationic) - types of stains, Explain Basic Stains (Ca...

Explain Basic Stains (Cationic) - Types of Stains? These are chloride or sulfate salts of coloured bases which on ionization give positively charged chromogen. As such, these h

Discuss in detail about the human brain, Discuss in detail about the human ...

Discuss in detail about the human brain  "wiring-up" of our brain begins in early development. When our genetic blueprint largely drives this wiring in womb, a newborn baby's b

Describe about transposition with large ventricular septal, Describe about...

Describe about Transposition of great arteries with large ventricular septal defect ? Transposition of great arteries with large ventricular septal defect: Usually the intercir

Fructose-1, Fructose-1,6-bisphosphate  and Fructose-6-phosphate : The  conv...

Fructose-1,6-bisphosphate  and Fructose-6-phosphate : The  conversion of  fructose-1,6- bisphosphate  to fructose-6-phosphate is  catalysed by fluctose-1,6-bisphosphatase  which  i

Explain the alternaria - fungi, Explain the Alternaria - Fungi? Classif...

Explain the Alternaria - Fungi? Classification Kingdom - Mycetae Division - Amastigomycota Form Class - Deuteromycetes Form Subclass - Hyphomycetidae Form Order

Equipment of cardio pulmonary bypass , Equipment : To maintain effective c...

Equipment : To maintain effective circulation and carry out functions of the lungs during an open heart operation the equipment should have: 1) Blood Pump 2) Oxygenator 3

What is diagnostic wax up, Diagnostic Wax Up A diagnostic wax up should...

Diagnostic Wax Up A diagnostic wax up should be done by you or got done from a laboratory for each and every case regardless of the extent or difficulty level of the case as it

Difference between lamarckism and neo-lamarckism, DIFFERENC E BETWEEN LAMA...

DIFFERENC E BETWEEN LAMARCKISM AND NEO-LAMARCKISM - S.No Lamarckism Neo-Lamarckism 1. It refers of the original

What are the human tissues affected by malaria, Q. What are the human tissu...

Q. What are the human tissues affected by malaria? What are the main clinical manifestations of the disease? A plasmodium contaminates the human blood causing destruction of RB

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd