Plasma membranes

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Plasma membranes are made up of 2 essential components which are phospholipid bilayer and proteins. They play several important roles in our body system. These include acting as barriers to the particles outside of the cell from the inside of the cell. They has transporter proteins and channel proteins on the surface of the plasma membrane which allows the cell to communicate with the environmental cells. These plama membranes are also semi-permeable which allows entry and exit of organelles in the cell. For instance, the protein made in the ribosome of the cell leave the plasma membrane by means of endocytosis. Finally, these plasma membranes also limit the growth of the cell size as well as their shape and the division of cell [1][2]

References

  1. Jeff Hardin, Gregory Bertoni, Lewis J. Kleinsmith. (2012). Becker World of the Cell . 8th ed. San Francisco, CA 94111: Pearson Benjamin Cummings. p 156-158.
  2. Jeff Hardin, Gregory Bertoni, Lewis J. Kleinsmith. (2012). Becker World of the Cell . 8th ed. San Francisco, CA 94111: Pearson Benjamin Cummings. p 156-158.




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