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
Describe the Features common in ventricular outflow obstruction ? An ejection systolic murmur (ESM) due turbulent flow of blood through the obstruction. Hypertrophy of the cham

Q. In hormonal terms why does menses occur? Menses is the endometrial monthly desquamation that occurs as the progesterone and estrogen levels fall after the regression of the

The stress lab must have the following equipment: 1) A mercury Blood Pressure apparatus. 2) A Bed so that the patients ECG can be recorded in the recovery period in supine po

Explain Inotropes and Vasopressors Persisting hemodynamic instability after correction of hypovolemia would necessitate the use of vasoactive agents. Which drug or interventio

Mechanical Properties of Ti and Ti Alloy as Compared to Bone  Titanium tends to seize when in sliding contact with itself or other metal. Titanium based alloys have a high co-e

VITAMIN - K Also known as naptho quionone / anti haemorrhagic vitamin / coagulation vitamin / menadone . It requires for formation of blood clotting factor prothrombin.

DIFFERENC E BETWEEN LAMARCKISM AND NEO-LAMARCKISM - S.No Lamarckism Neo-Lamarckism 1. It refers of the original

What is Gingival Inflammation Areas of overt inflammation should be identified and the etiology investigated to initiate proper treatment.

What is the thermopenetration concept? The pasteurization of products packed in glass containers leads to a problem of a specific nature, which is referred to as 'thermopenetra

Purifying antigens present in small quantities as a mixture by relating an antibody to an antigen.