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The Structure and Funtion of the Cell Membrane The cell is recognized as the basic unit of all living things. There are two main types of cell in the living world and they are prokaryotic and eukaryotic. One thing which these cells have in common is the cell membrane. Cells probably would never have existed if it was not for the cenll membrane. The life of the cell depends on precise compartmentalization and organization of the proteins, nucleic acids, carbohydrates and small molecules. Membranes are found inside cells as well as around them defining the external boundary and they regulate the molecular traffic across that boundary, achieving compartmentalization. The membrane divides organelles such as the nucleus, endoplasmic reticulum, mitochondria and lysosomes into specialized compartments and thereby separate components and biochemical processes.(1) Membranes are central to cell-cell communication and cell movement and also organize complex reaction sequences such as the electron transport chain...

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