quinta-feira, 25 de agosto de 2011

Prokaryotes vs. eukaryotes


If I had to choose to be an eukaryotic(plant or animal cell) or a prokaryotic cell, I would choose to be prokaryotic cell.

Prokaryotic cells are a lot less complex then eukaryotic cells.

Prokaryotic cells have no nucleus, because there is no need, since it’s a much smaller size, and it means all the materials are very close together. They do have DNA though. The central region of the cell(nucleoid) is pretty much where the DNA is located. Although, there is no physical boundary enclosing the nucleoid. The prokaryotic cell has only one circular DNA molecule, and it’s simpler because it requires less genes to operate then the eukaryotic cell.

The prokaryotic cells have very small ribosomes compared to the eukaryotes.

The prokaryotic cells have no membrane-bound organelles which are independent of the plasma membrane. It’s a significant difference, because of the complexity of the eukaryotic cell.

The prokaryotic cells can also live in water, air, soil, and most objects.

Some move by flagellum, that is a “tail” made up of proteins, and it allows it to move in its environment.

Prokaryotic cells also live longer and have the “capsule” which protects them. 

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