Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Decay and Nutrient Cycling
Soil organisms are the chief agents of decay of organic matter. Decomposition and mineralisation of organic matter results in release of inorganic nutrients which can be absorbed by roots to sustain plant growth. In soil, the decomposers, that include a vast variety of bacteria, actinomycetes and fungi act on the organic matter. These organisms bring about the hydrolysis and oxidation of organic compounds through their enzymes. Complex organic compounds are broken down into simpler compounds until at last, carbon, hydrogen and oxygen are finally released as carbon dioxide and water. Other nutrients contained in the organic matter are released in inorganic form. You might recall that the conversion of nutrients present in the organic matter into inorganic form is termed as mineralisation. The whole process is as follows. Organisms like the fungi, ants, beetles, mites, slugs and snails, sometimes invade fragments of litter even before they fall on the ground. In subsequent transformations, each type of organic substance (carbohydrates, proteins and fats) as well as each stage in the breakdown of these substances, has its own specific set of saprophytes which act upon the organic material so that decay progresses by stages. For example, proteins are broken down successively into amino acids, ammonium salts, nitrites and nitrates, each step being the result of action of a different organism or group of organisms. Therefore, the process of decomposition consists of several overlapping cycles. As a result of decomposition of organic matter humus is formed. which is quite resistant to further alteration. You have already studied it earlier.
what is persons subunit
Explain about Bone lining cells Bone lining cells are basically inactive osteoblasts (in terms of making bone) that line bone surfaces. Osteocytes are osteoblasts that have be
What is the term for the pattern of base pairing between one DNA strand and its partner in a duplex?
In the F2 generation of hybridization for a given trait conditioned by a pair of alleles T and t, according to Mendel's first law what are the genotypes of each phenotypical form?
MEIOSIS Every organism is mortal, It becomes old and wornout with advancing age (= ageing ) and ultimately dies ,Before death however ,it reproduces its own kind, so
Why lymph is called the middle man of our body?
57. While planning for an artificial hybridisation programme involving dioecious plants, which of the following steps will be irrelevant A usting of pollen on stigma B Collection
Sporotrichosis Sporotrichosis is subacute or chronic infectious disease caused by a dimorphic fungus, Sporothrix schenkii which occurs commonly in soil, wood and vegetation. T
Spinal nerves: They take their origin from the spinal cord. They are the mixed nerves having both sensory and motor fibres. There are 31 pairs of spinal nerves. The se
Non Symbiotic Nitrogen Fixers - Nutrient Cycles There are certain groups of free living bacteria both aerobic and anaerobic and blue green algae that fix nitrogen. Aerobic nit
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd