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What will a streak plate with two species of bacteria look like?
Wiki User
∙ 9y ago
A streak plate, with 2 species of bacteria, will show the bacteria in straight lines. Each species of bacteria will be separate from the other.
Wiki User
∙ 9y ago
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The important of obtain pure bacteria?
The need of pure culture of bacteria to characterize an individual species. Pure culture are also important to study the morphology and physiology of individual bacterial species, their biochemical behaviour and response to different compounds like antibiotics, which all can me alter by the influence of other species if prestent (in mixed culture) and also for isolating and studying of their molicular structure i.e. DNA or RNA. Some common ways to obtain a pure culture of bacteria are: 1 The spread plate technique. 2 The pour plate. 3 Streak plate technique.
Why use a streak plate to grow a bacterium?
You do a streak plate in order to get isolated colonies. If you inoculate into a slant, you have less surface area to work and less chance of getting isolated colonies. In broth, you'll definitely get growth but you won't know WHAT is growing. You go back into each quadrant (a little) with your loop in order to "dilute" the bacteria and get colonies. Quadrant 1 is pretty think (like a smear on the plate) but by the time you get to Quadrants 3 and 4, you should see more defined colonies and not just a film of bacteria.
What advantage does the streak plate method have over the pour plate method?
A disadvantage of the streak plate technique could be colony isolation problems. If the streaking technique is not done properly or if there is too much of an organism present on the inoculating loop then the cells can cluster and form what looks like one colony but it can actually be a couple colonies (made from a couple cells). This can cause an inaccurate colony forming unit count.
How could you identify a potential contaminant on a streak plate?
To clean a streak plate I use coke classic. In the red can, the diet version does not work as well. I believe it is the acid that takes away the powdered rock debris. It makes them quite white again. Mr clean magic eraser also takes away some of the heavy debris...but does not get them clean enough.
What are some examples of aerobic bacteria?
Unlike aerobic bacteria, anaerobic bacteria do not use oxygen. Types of bacteria: aerobic - oxygen is essential facultatively aerobic - use oxygen if available, but can do without it anaerobic - oxygen is toxic for them Anaerobic bacteria can be found especially in extreme environments such as thermal vents or deep-sea vents.
Primary purpose of the streak plate?
A streak plate technique is used to isolate a single species from a mixed species population. You take a small sample of the mixed species on a sterile loop and streak an agar medium into four zones, reflaming the loop between zones. After incubation, single species colonies should be visible within the fourth zone.
What advantages does the streak-plate method have over the pour plate method?
The streak plate method makes it easier for colonies of bacteria to grow. It also generally leads to individual colonies that look like small dots, rather then simply a mat of bacterial growth.
What advantages does the pour plate method have over streak plate method?
The streak plate method makes it easier for colonies of bacteria to grow. It also generally leads to individual colonies that look like small dots, rather then simply a mat of bacterial growth.
The important of obtain pure bacteria?
The need of pure culture of bacteria to characterize an individual species. Pure culture are also important to study the morphology and physiology of individual bacterial species, their biochemical behaviour and response to different compounds like antibiotics, which all can me alter by the influence of other species if prestent (in mixed culture) and also for isolating and studying of their molicular structure i.e. DNA or RNA. Some common ways to obtain a pure culture of bacteria are: 1 The spread plate technique. 2 The pour plate. 3 Streak plate technique.
Why use a streak plate to grow a bacterium?
You do a streak plate in order to get isolated colonies. If you inoculate into a slant, you have less surface area to work and less chance of getting isolated colonies. In broth, you'll definitely get growth but you won't know WHAT is growing. You go back into each quadrant (a little) with your loop in order to "dilute" the bacteria and get colonies. Quadrant 1 is pretty think (like a smear on the plate) but by the time you get to Quadrants 3 and 4, you should see more defined colonies and not just a film of bacteria.
How do you know a mineral's streak?
The streak of a mineral can distinguish between two samples that have the same color. The streak is often a different color. To test streak, use a streak plate. This is a piece of unglazed porcelain, like the back side of a tile.
What does a mineral's streak tell and how do you test for it?
The streak of a mineral can distinguish between two samples that have the same color. The streak is often a different color. To test streak, use a streak plate. This is a piece of unglazed porcelain, like the back side of a tile.
What does a mineral and streak tell you and how do you test for it?
The streak of a mineral can distinguish between two samples that have the same color. The streak is often a different color. To test streak, use a streak plate. This is a piece of unglazed porcelain, like the back side of a tile.
What advantage does the streak plate method have over the pour plate method?
A disadvantage of the streak plate technique could be colony isolation problems. If the streaking technique is not done properly or if there is too much of an organism present on the inoculating loop then the cells can cluster and form what looks like one colony but it can actually be a couple colonies (made from a couple cells). This can cause an inaccurate colony forming unit count.
What does mineral's streaks tell you and how do you test for it?
The streak of a mineral can distinguish between two samples that have the same color. The streak is often a different color. To test streak, use a streak plate. This is a piece of unglazed porcelain, like the back side of a tile.
What are the steps in properly streaking a plate?
When we have to isolate a specific microbial species from their mix culture or to grow any microbe on solid surface for their further studies then they can be grow on a culture medium containing a gel like substance known as agar which produce disticnt microbial colonies when inoculate in a petri dish containing the growth medium. The way by which the inoculation of microbial sample done is called a streak plate method in which the microbial sample is streak with the help of inoculating loop on the agar plate firmly, in the way so that the cell can be isolated. There are two more method to incoulate the microbial sample that are: pour plate and spread plate techniques.
How could you identify a potential contaminant on a streak plate?
To clean a streak plate I use coke classic. In the red can, the diet version does not work as well. I believe it is the acid that takes away the powdered rock debris. It makes them quite white again. Mr clean magic eraser also takes away some of the heavy debris...but does not get them clean enough.
