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Microbiology - Essay Example
Author : blocksonia
Pages 5 (1255 words)
Cell organelles are subunits within a cell that have their own specific function within that cell. They are known as cell organelles because they play similar roles that organs play in a body. There are many different types of cell organelles, each designed to do something specific, yet having the capability of working with the rest of the cell organelles in any given cell.
As they contain water, they are able to make sure that the latter possibility remains in effect.
The cell wall is a tough and flexible layer that surrounds many types of cells. It can be found outside of the cell membrane and plays the part of acting like a "pressure vessel," being able to prevent the cell from over-expanding when water enters it. They are found in plants, algae, and fungi - many organisms that need water as a part of their growth. The cell wall also filters what enters and exits the cell.
The cell membrane can be found between the cellular machinery inside the cell and the fluid that can be found outside of the cell. The cell membrane is a permeable lipid bilayer that can be found in all cells, in all types of organisms. The cell membrane acts as a type of skin, separating the intracellular components from the environment of the extracellular components. The cell membrane helps to add shape to the cell and aids in the forming of tissue.
The nucleus is the DNA provider of eukaryotic cells; in fact, the foremost function of the nucleus is to control gene expression as well as the replication of DNA during cell cycles. ...