Question

what is carbon fixation and why is it important?

Answer 1

Carbon fixation or dark reaction or light independent reaction of photosynthesis is the process in which plants take atmospheric CO2 and convert it into carbohydrate, mainly glucose. The process occurs in chloroplast of green leaves and require sunlight. This is the only process that fuel the entire world. Because of carbon fixation plants are considerd autotroph, means they can make their food by own. We human beings are dependent on plants for their food. Animals respire and release the CO2 in the atmosphere. If plants do not fix this atmospheric CO2 into glucose, the temperature of atmosphere keep rising (as CO2 is a green house gas) and will reach up to so high that it would be completely impossible for animals to survive. Another importance of carbon fixation is that this is the only mechanism on earth to make food. Each and every item that we consume eventually comes from carbon fixation only. The third and most important part of the carbon fixation is that the oxygen that we use to respire comes from the carbon fixation only. This is the process that maintains a contant equilibrium between the animal and environment. If carbon fixation stops we can't imagine life on earth any more. In simple world life is completely unsustainable without these two words "carbon fixation".