Differences Between Prokaryotic And Eukaryotic Cells Essay

1122 Words Oct 8th, 2014 5 Pages
There are many differences shown between prokaryotic and eukaryotic cells, either structural, functional or the way in which they undergo certain processes. Prokaryotes can be defined as organisms based on cells that lack a distinct membrane-bound nucleus. Examples of prokaryotes are bacteria or archaea. They are small in size, roughly 1-5µm. Oppositely, eukaryotes are organisms based on cells which possess a distinct nucleus and organelles (Bradley and Calvert 2014) such as animal or plant cells and are much larger in size at about 10-100µm (Becker et al. 2008).
The difference in sizes between the two types of cell relates to their cellular function as the cellular metabolism sets a limit on cell size. Some bacteria called mycoplasmas are the smallest cells known and have enough enzymes to carry out activities necessary to sustain themselves and reproduce. As eukaryotic cells are larger in size, they have a larger amount of DNA and enzymes in order to sustain themselves and carry out more cellular functions. The plasma membrane functions as a barrier that allows oxygen, nutrients and waste in and out of the cell. This means surface area to volume ratio is very important (Reece et al. 2010). Prokaryotes are smaller than eukaryotes and therefore have a larger surface area to volume ratio, therefore more substances can pass through the plasma membrane per second.
Genetic Information
The most obvious difference between eukaryotic and prokaryotic cells is that eukaryotic cells…

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