The cell has cell wall to protect it from adverse conditions.how?
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4: Bacteria - Cell Walls
Last updatedJun 5, 2019
3: Cell Structure I
5: Bacteria - Internal Components
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Contributed by Linda Bruslind
Senior Instructor II and Lead Advisor (Microbiology) at Oregon State University
Sourced from Open Oregon State
It is important to note that not all bacteria have a cell wall. Having said that though, it is also important to note that most bacteria (about 90%) have a cell wall and they typically have one of two types: a gram positive cell wall or a gram negative cell wall. The two different cell wall types can be identified in the lab by a differential stain known as the Gram stain. Developed in 1884, it’s been in use ever since. Originally, it was not known why the Gram stain allowed for such reliable separation of bacterial into two groups. Once the electron microscope was invented in the 1940s, it was found that the staining difference correlated with differences in the cell walls.
The cell wall provides the cell with protection from all the unfavorable conditions. The cell wall is a rigid boundary that separates the cytoplasm with the external environment. Without the cell wall the plant cell will collapse. Uptake of nutrients would be tough and the cell wall would be without any protection and support. Hence the plant will eventually die.
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