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Originally Posted by KiKiPie  I have a boi paper due friday. I dont understand it AT ALL! Do you think you could explain it to me? LOL! Let me know and I will tell you what its about....
well incase anyone else knows
I am supposed to discuss why prokaryotes tend to be small relative to eukaryotic cells.
Any help would be great! I have read the chapter but I am still lost! |
Kikipie, from what I can remember from my microbiology class three semesters ago...
Prokaryotic cells and eukaryotic cells are more alike than they are different. Their differences though being small are significant.
All cells have certain things in common...they reproduce, they require a supply of energy, the regulate the flow of nutrients and waste that enter and exit the cell. they have a cell membrane that separates the chaos outside a cell from the high degree of organization within the cell. They all contain DNA, several varieties of RNA and proteins.They are all compased in the same way as well by the use of carbohydrattes, proteins, nucleic acids, fats, vitamins and mineral and all of that have intensive sensing systmes; in relation to the human body, the cells sensing systems we would liken to our "nose".
So the main similarities between Prokaryotic and Eukaryotic cells would be that they both have DNA as their genetic makeup. They are both Membrane bound, they have a similar basic metabolism and they both have ribosomes.
All of those things listed above are found in both Eukaryotic and Prokaryotic cells. It is believed that Prokaryotic cells evolved first and that Eukaryotic cells evovled from them. Prokaryotic cells are less complex on many levels, Eukaryotic cells are structurally and biochemically more complex. They carry a higher degree of orginaztion than the Prokaryotic cells and they contain many organelles and a nucleus while Prokaryotic cells have no organalles and do not have a nucleus, this is their biggest and most significant difference.
Eukaryotic cells are also larger than Prokaryotic cells because they are more complex.
I hope this helps you out a little and hope it wasn't confusing! It's been a long day
