Cellular world can be divided into two types, depending on the presence of nuclei inside cells. Eukaryotic cells have a well-defined nucleus surrounded by a nuclear envelope, whereas prokaryotic cells lack this compartment. All bacteria are prokaryotes. Bearze (2015) provided information about the Bacterial Cell Structure and Function. Vibrio cholerae is a gram negative, non-spore forming, curved rod that is oxidase positive. It is very motile and has a single polar flagellum. Vibrio cholera is 1- 3 µm by 0.5-0.8 µm, is a facultative anaerobe bacteria. (Public …show more content…
It also helps to anchor appendages like the pili and flagella; the wall gives the cell its shape and surrounds the cytoplasm membrane, protecting it from the environment. Cell wall of Vibrio cholera protects the cell osmotic shock and physical damage. In addition, it also confers rigidity and shape of bacterial cells.
Capsule Some species of bacteria have a third protective covering.Vibrio cholera serogroup O139 does contain a polysaccharide, Capsules keep the bacterium from drying out and to protect it from phagocytosis (engulfing) by larger microorganisms. ( Microbial Biorealm , 2011)
Cell membrane The cell membrane is a phospholipid bilayer that completely surrounds Vibrio cholera., The phospholipid bilayer structure has both hydrophilic and hydrophobic, components. The hydrophilic components line up on the external and internal surface of the membrane. (Hartsock, 2003)
Figure 2: Vibrio