Two Main Features Of Eukaryotic Cell

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There are two main types’ of cells. These are prokaryotic (see diagram 1) and Eukaryotic. ( See diagram 2). Prokaryotic cells are the cells of microorganisms such as Bacteria and Achaea. Eukaryotic cells are basically cells that make all other living things such as humans and animals. You can identify the difference between these cells by their structure they both have a number of features in common but all so lots of differences. The eukaryotic cell has a membrane enclosed organelle called the nucleus. This is where the DNA in the cell can be found. However the prokaryotic cell does not have a nucleus. The DNA in a prokaryotic cell is found in an area of the cell call the nucleoid this has no membrane separating it from the rest of the …show more content…
The cell membrane separates the inside of a cell from anything around it. The cell membrane is comprised of lots of smaller molecules called phospholipids. Phospholipids have dual nature they have a head and a tail, the head is made up of phosphate and is hydrophilic (likes water) and the tail is a lipid and is hydrophobic doesn’t like water. The phospholipids make up a bi-layer this is essential so that the hydrophobic tails do not come into contact with neither the extracellular fluid nor the inner cellular fluid. The phospholipids will allow small uncharged molecules through such as carbon dioxide and oxygen and passage such as Osmosis. Also within the cell membrane there are proteins, there a few proteins such as the glycoproteins, these are involved in cell recognition and cell attachment and the transmembrane proteins allow the passage of larger and charged molecules into the cell by active transport means such as diffusion. Also found in the cell membrane are glycolipids these are the sites of cell recognition in the membrane. The final thing that I fell is important that is found in the cell membrane is Cholesterol this is responsible for maintaining the fluidity of the membrane. The cholesterol molecules are found inserted between the phospholipids these are essential as they keep the phospholipids not too close to each other and not too far apart. The cell membrane structure is often referred to as the Fluid Mosaic Model it is given the name because

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