Nitrogen cycle, Biology

Nitrogen Cycle

The nitrogen is an essential constituent of protein - the building block of all living cells. It is also a major constituent of the atmosphere (79 per cent). Although organisms live in an atmosphere rich in gaseous nitrogen yet the organisms cannot use this nitrogen. It can be utilised only after gaseous nitrogen has been 'fixed' into some economically usable form. The transformation whereby molecular nitrogen is converted into a variety of nitrogenous compound and its release again into the atmosphere, is what constitutes the nitrogen cycle.

 

Posted Date: 1/19/2013 1:57:56 AM | Location : United States







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

Write discussion on Nitrogen cycle
Your posts are moderated
Related Questions
How are grasslands classified? Grasslands might be classified into steppes and savannahs. In the steppes the prevailing vegetation is grass, as in the pampas of South America

If three different traits are controlled by the unlinked genes A, B, and C, and each has multiple alleles so that A has 4 alleles, B has 6 alleles and C has 2 alleles, how many dif

Pantothenic acid (Calcium pantothenate) Calcium pantothenate is a white, loose, faintly hygroscopic powder without odour and of bitter taste. It is easily soluble in water, gly

Which biological molecule contains the genetic information that controls cellular functioning

Q. Concerning the nitrogen- containing bases that participate in nucleotides, what is the difference between RNA and DNA? In DNA nucleotides can be formed of thymine (T), adeni

Q. Why are pteridophytes better adapted to dry land than bryophytes? Were pteridophytes always less abundant than phanerogamic plants? Although pteridophytes and bryophyt

Describe Surgical Closure of Patent Ductus Arteriosus technique? The patient is positioned in right lateral position and a left posterolateral thoracotomy is done. In infants

Endothelium - Ovule In plants bearing unitegmic ovules, the nucellus degenerates during early stages of ovule development and the embryo sac comes in contact with the innermos

C o m p o s t i n g It is a modification of a conventional or solid manure handling system with anaerobic decomposition. Types of composting systems include windrow, b

Patters of Cleavage In most of the animal groups with spherical or almost spherical egg and little or moderate amount of yolk (micro-or mesolecithal eggs), the first and seco