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Some people believe that Eukaryotic cells are deemed as a result of the evolution of symbiotic Prokaryotes.

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Introduction

Some people believe that Eukaryotic cells are deemed as a result of the evolution of symbiotic Prokaryotes Both Prokaryotic and Eukaryotic cells over time have sustained very dynamic changes from one another. More specifically we have seen the appearance of a more complicated and organized cell structure, the nucleus. However the big question amongst scientists today is how did these changes first occur? A fundamental concept of this evolution is the belief in the natural progression 'from the simple, to the more complex.' However one popular theory that argues that Prokaryotic symbiosis was responsible for forming the Eukaryotic nucleus is the 'Endosymbiotic Theory' this theory was first proposed by a former Boston University Biologist known as Lynn Margulis in the 1960's. ...read more.

Middle

This way both of the bacteria organisms would be benefiting from a form of symbiosis. Other studies show that prior to the Cambrian Explosion of Eukaryote Organisms the oxygen levels began to soar immensely at about 2.5 billion years ago, followed by the first nucleated cell 1.5 billion years ago. Another important factor to this theory is one discovery made by a professor Kwang Jeon of the University of Tennessee. In 987 he noticed that his amoeba collection were developing large numbers of dots. These dots later turned out to be a bacterial invasion, they began killing of the professor's collection. Jeon noted that the least sick ones and began keeping records of their progress. ...read more.

Conclusion

The photosynthetic bacteria utilized its ability to perform photosynthesis for the former prokaryotic host cell, rather then for just itself. We recognise this today as the Chloroplast. Before Lynn Margulis thought up the concept of the Symbiotic Theory, other biologists believed that organelles were encoded within the eukaryote's genetic blue print, or DNA. In other words the organelles existed because they were meant to exist by the DNA code, rather like why all humans have hands and feet because of their genetic structure, Margulis thought that if the organelles were truly forms of prokaryotic symbionts they would have their own separate DNA. In the 1980's this was proven from the case for two classes of organelles, the mitochondria and chloroplasts. ...read more.

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