which structures are unique to the cheek cell and which are shared with bacteria

Question

which structures are unique to the cheek cell and which are shared with bacteria cells. why do you think that bacteria cells are found in your mouth? Think about the potential interactions that humans have with bacteria when answering this question, and the different categories of community interactions. what determines whether a bacterium is gram positive or gram negative? Why is it beneficial to know whether a specific bacteria species is gram positive or gram negative? Now that you've learned basic staining/microscopy techinques, what types of research involving bacteria could you do in the future with these same tools?

Explanation / Answer

Cheek cell and bacteria both have the cell membrane and cytoplasm in common between them.

Our moouth is full of bacteria. As the mouth is warm and wet which is seems perfect for bacterial population to reproduce and increase in nuber. We can have 500-1000 different types of bacteria inside the mouth performing various functions. Some of the bacteria present in the oral cavity helps o fight the germs which are passing through the oral cavity and reduce our chance ´s to get the disease. However, at the same time baceria also produces enzymes and acids which causes tooth decay.

Baceria have peptidoglycan in heir cell membrane. The bacteria which are gram positive has high volume of peptidoglycan, thus having a thick cell membrane. Wheras, in gram negative bacteria the celll membrane is thin having low amount of peptidoglycan.

We would like to know whether a bacteria is gram positive or gram negative, because it has been seen that they have different physiology and also different virulance factor which are important for treatment against baceria. If we look at the outer membrane of gram positive bacteria, they have thick peptidoglycan layer. But in gram negative bacteria, this peptidoglycan layer is thin but at the same time they have an outer membrane where lipopolysaccharide (LPS) O-antigen chains are found. Now, the LPS seems to be more virulant and has proinflammatory functions and if present in higher amount can cause organ failiure in host cell. Thus to have a treatment plan for bacterial infection it is very important to know whether a bacteria is gram negative or positive.

With staining/microscopy techinques, we can be able to identify bacteria present in opour different body parts like mouth, skin or hand and how they are important to human physiology.

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