HOW DOES OXYGEN RELATE TO THE EUKARYOTES ?

           How Does Oxygen Relate To The Eukaryotes

   

As we have emphasised before that the first cells ( the prokaryotes) were the first life form to have existed and this was about 1 billion years after earth formation.  During this time in the early earth ,were said that the prokaryotes were mostly ancestors due to early atmospheric conditions. For Eukaryotes to thrive, it was expedient that oxygen should had been than it was in the early earth. Why? Because, the more advanced these eukaryotic cells becomes, the more oxygen will be needed. 

Many scientist believed that because the early earth had a very low or no amount of oxygen, that was why it took a long time for the Eukaryotic to emerge while the prokaryotes thrived successfully.

   Eventually, the eukaryotes still came or emerged. The crucial questions we then need to ask ourselves is, How did oxygen come about to be utilizable? We can answer this by saying, during the prokaryotes reign , photosynthetic prokaryotes were able to cause a reaction using the sun's energy to produce their own food.  They use the sunlight to synthesize materials etc carbohydrates from carbon dioxide and electrons source. A simple explanation of the photosynthetic process goes thus; " during photosynthesis, water is used as an electron donor to consume carbon dioxide thereby releasing molecular oxygen into the atmosphere and sea water as by - product. As photosynthetic prokaryotes continued in this process, they gradually saturated the seas and atmosphere with oxygen which had previously contained a great concentration of carbon dioxide.

Most of the Anaerobic prokaryotes could not cope with their new Anaerobic environment, and so some species are extincts. But some prokaryotes developed mechanism of using atmospheric oxygen. The reason why the prokaryotes became even more successful was because aerobic respiration is a more efficient way of obtaining energy from organic molecules. The evolution of these aerobic prokaryotes was an importants to the evolution of only eukaryotes through other distinguishing figures had to evolve as well.