And so streptococcus I are going to have a chain like pattern of multiple cells. And so strep toe is a route that is referring to a chain. Once again, the cox I root here is referring to the morphology, the circular shape and the root strep toe is really important here. Now, the next arrangement that we have over here is streptococcus side. And so in this area, gonorrhea is an example of a bacteria that takes on this diplo cox I arrangement. And so when a cell divides, it divides into two cells as you see here, but they remain attached to create this diplo cox I formation here. Is referring to two cells that remain attached after cell division. Root here is referring to the morphology, the circular shape and the die here is a route that means to and so die bloke oxide or diplo cox I. And so the first arrangement that we have appeared at the top left is diplo cox I. And so notice that all of these are different arrangements, even though they all have the same morphology, the same shape. And the arrangement is how these cells are arranged or organized. And so the shape here or the morphology is not to be confused with the arrangement. Now it's important once again not to confuse morphology with arrangements, recall that morphology is referring to the shape and notice that all of these cells down here all have the same cox I. And so these cocks I cells can be arranged or organized in many different ways after cell division. And so uh the cox I can have many different arrangements. And so the Kochs ir circular shaped bacterial cells that can be either round or spherical or flattened like a hockey puck. And so cox I is the plural form of caucus, which recall from our previous lesson video is one of the three main types of bacterial cell morphology ease, and cox I is referring to a circular shaped morphology. In this video, we're going to focus in on cox i bacterial cell arrangements. And as we move forward in our course, will start to talk more about the arrangements that the bacteria take, which once again do not confuse morphology with arrangement morphology refers to the shape either caucus, bacillus or spiral, um and then arrangement refers to the organization or the alignment of multiple cells, which we'll talk about later. And so this here concludes our brief introduction to the types of bacterial cell morphology or the types of shapes that bacteria mainly take on. And so you can see that we have the little corkscrew over here just to help remind you of spiral um being a corkscrew shape or this spiral shape as you see like that. As you can see here in this image, An example of this is spiral um minus a specific bacteria that has this corkscrew shape or this perilla um morphology. And so what you can see it has this spiral or corkscrew shape. The third main type of morphology that bacteria can take is spurring lem and spiral. Coli which creates these rod shapes or this bacillus morphology and then last but not least. And an example of this is actually a shriek E. And so you can see here that it creates these elongated rods as you see here. Now the next one that we have here is bacillus and bacillus is a rod shaped morphology. And so uh staphylococcus arias is an example of a bacteria that has circular morphology, caucus morphology. And so as you can see down below, the shapes of some bacteria are circular as you can see here. And so the first bacterial cell morphology is caucus and caucus is circular shaped. Now really there are three main bacterial cell morphology is that we have numbered down below one, two And three over here. And so bacterial cells typically range between 0.2 to 2.0 micro meters In diameter and about 2-8 μm in length. In this video we're going to begin our lesson on the types of bacterial cell morphology.
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