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The Structure of Prokaryotic and Eukaryotic cells.
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The Structure of Prokaryotic and Eukaryotic cells The prokaryotic cell developed first, pro meaning before and karyon meaning nucleus. The evolution of prokaryotic cells preceded that of eukaryotic cells by 2 billion years. This group of cells are now known as bacteria and archae. This simple cell has evolved into the eukaryotic (true nucleus) cells, a more complex cell, generally found in higher organisms such as plants and animals. The fundamental difference between the two cells is the presence of a nucleus in the eukaryotic cell. Though the prokaryotic cell contains genetic information, it is suspended freely in the cytoplasm. The eukaryotic cell is also considerably larger than the prokaryotic, it possesses an endoplasmic reticulum along with many other complex organelles and synthesises larger ribosomes. On the other hand all prokaryotic cells have cell walls, where as it is generally only the eukaryotic cells of plants that possess cell walls. ...
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