Biological fixation - nitrogen fixation, Biology

Assignment Help:

Biological fixation - Nitrogen Fixation

Approximately 63% of all nitrogen fixed is through biological fixation. Nitrogen fixing organisms are primarily prokaryotes; bacteria and blue green algae. Nitrogen fixation requires activation of molecular nitrogen by splitting nitrogen into two atoms of free nitrogen N2 → 2N.

This is an energy requiring step, which in biological fixation requires 160 kcal/mole. The actual fixation step, in which two atoms of nitrogen combine with three molecules of H2 to form two molecules of ammonia (NH3) releases 13 kcal/mole. Therefore, the net energy requirement for nitrogen fixation is 147 kcal/mole.


Related Discussions:- Biological fixation - nitrogen fixation

How does glucose help in the formation of atp from adp?, GLUCOSE IS OXIDISE...

GLUCOSE IS OXIDISED TO PRODUCE ENERGY TO GIVE ADP TO FORM ATP

What is the significance of proteins for living beings, Q. What is the sign...

Q. What is the significance of proteins for living beings? Proteins play an essential role in nearly all biological processes. Due to their variety they can suppose many divers

Explain restricted fragment polymorphism, Q. Explain Restricted fragment po...

Q. Explain Restricted fragment polymorphism? This method makes use of a group of enzymes termed restriction enzymes which recognise particular sequence of DNA and act as "molec

Theskin, drawandlabelthemajorendocrineglandsofthehumanbody

drawandlabelthemajorendocrineglandsofthehumanbody

Explain about nutritional recommendations for healthy ageing, Explain about...

Explain about the Nutritional recommendations for Healthy Ageing? You would recall reading about meal planning during various stages of life, spanning right from the infancy ti

The halstead-reitan neuropsychological battery, The halstead-reitan neurops...

The halstead-reitan neuropsychological battery The beginnings of the battery can be traced to the special laboratory established by Halstead in 1935 for the study of neurosurgi

Historic example of evolutionary quantitative geneticists, Define Historic ...

Define Historic Example of Evolutionary quantitative geneticists? Evolutionary quantitative geneticists have developed tools to create predictions about the short-range evoluti

Determine the antagonist of the glycine receptor, Person Z swallowed a larg...

Person Z swallowed a large amount of substance X and, as a result, has convulsions (abnormal violent contractions of skeletal muscles).  Swallowing which of the following substance

Does peptide bonds are amide linkages, Which of the following statements ab...

Which of the following statements about peptide bonds are true? Peptide bonds are amide linkages Peptide bonds form from nucleophillic attack by an electron pair on an alpha-

State the process of metabotropic receptors, State the process of metabotro...

State the process of metabotropic receptors Consider a system that contains two neurons and one cardiac SA node cell in a culture dish bathed in normal physiological saline.  A

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