Carbon cycle, Biology

Carbon is important constituents of all organic compounds. It forms 49% of dry weight of the organisms.  Earth atmosphere contains 0.03% carbon dioxide gas.

              The carbon cycle involves exchange of carbon between biosphere, lithosphere, hydrosphere and atmosphere of earth. This cycle involves:

(i)                 Carbon dioxide is taken from atmosphere by green plants which in presence of sunlight convert it into carbohydrate by process of photosynthesis.

(ii)               Afterwards carbon moves along the food chain through consumers (herbivores, carnivores) at different trophic level.

(iii)             Carbon return to the atmosphere in a no. of ways:

(a)            Both animals and plants respire and release carbon -dioxide back into the atmosphere.

(b)           Bacteria and fungi break down the dead animals and plants into carbon dioxide.

(c)            Combustion of fossil fuels like coal, petroleum into carbon dioxide.

(d)           Volcanic eruption.

This is how carbon cycle goes on forever.

 

 

Posted Date: 7/11/2012 7:12:29 AM | Location : United States







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

Write discussion on Carbon cycle
Your posts are moderated
Related Questions
what is cell and what are the components of cell

Vegetative Development - Growth It is quantitative and irreversible change. It reflects an increase in size and volume of an organism. For example, the change in the size of a

B i osecurity in Poultry Health Management Biosecurity includes all the measures that are taken to prevent infection to individual, material and environment from the pathogen

Which are the living beings that carry out photosynthesis? Which is the cell organelle responsible for the absorption of light for the photosynthesis process in plants and algae?

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

Define Nutritional Management of Food Allergies and Food Intolerance? The term "hypersensitivity" is general and may include true allergies, reactions that do not affect the im

Anaphase This  phase is of shortest duration. It  begins  with  a sudden  separation  of the two chromatids of each   due  to splitting   of its centromere and  then a slow mov

Explain about the Simple Proteins? Simple proteins are those that are made of amino acid units just joined by peptide bond. Upon hydrolysis they yield a mixture of amino acids

Metamorphosis The phenomenon of metamorphosis is described as a process during development which involves a remarkable change in morphology and physiology of the larva, so tha

Define How to Prevent the Cancer? A continuing and urgent need is there to take all steps to prevent cancer. Cancer rates are set to increase another 50 percent by the year 202