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

What do you know by hemodynamic responses, Q. What do you know by Hemodynam...

Q. What do you know by Hemodynamic Responses? Reduced exercise capacity roughly reflects impaired LV function, and may contribute its prognostic value to this association. Comp

Illustrate the structure and functions of aqueous humour, Illustrate the St...

Illustrate the Structure and functions of aqueous humour Aqueous humour is a clear fluid that fills the anterior and posterior chambers of the eye and permeates the vitreous. I

What do you meant by medical writing, Question 1 : What do you meant by ...

Question 1 : What do you meant by medical writing? Show various types of medical writing. Define and explain briefly medical writing Discuss various types of medical w

What are the main proteins that constitute the sarcomere, What are the main...

What are the main proteins that constitute the sarcomere? What is the function of those molecules in the muscle cells? In the sarcomere there are organized myosin and actin blo

Main opportunistic diseases that can affect aids patients, Q. What are the ...

Q. What are the main opportunistic diseases that can affect AIDS patients? Among the opportunistic diseases that affect HIV contaminated people during the AIDS stage some are:

Protozoa and Fungi compare and contrast, classification schemes and charact...

classification schemes and characterisitics used for this.

Walrasian model, Normal 0 false false false EN-IN X-N...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Explain armamentarium, Armamentarium 1. Denture duplicator or a modifie...

Armamentarium 1. Denture duplicator or a modified plastic soapdish. (A plastic large soapdish with a base and cover can be adapted by drilling 2 mm holes interspersed and cover

Location of overgloves, Location of Overgloves - taped to the sides of ...

Location of Overgloves - taped to the sides of the mobile cabinets for procedures such as patient examination and charting during non-aerosol producing procedures - on the p

Ecology, What is the role of ecology to the evolution theory.

What is the role of ecology to the evolution theory.

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