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What advantage(s) does the pour plate method have over the streak plate method?
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- What is one advantage of a pour plate over a streak plate?What is the difference between the pour plate method and the spread plate method? Why might you choose one over the other? What kind of plate must this be and why do you say that?What are pure cultures and why are they important? How are spread plates, streak plates, and pour plates prepared?
- What are some methods to prevent contamination during streak plating a medium?What is the main difference between plates before and after centrifugation? What may be the purpose of concentrating the media and perform a second plating?Why is it important to use a sterilized loop between streaks when preparinga streakplate?
- Why is dilution a necessary part of pure culture preparation?During the preparation of the capsule stain, the slide used to spread the India ink/bacteria mixture is discarded in the disinfectant solution. Why?What do to do when the disstillation did not make the sample completely pure? What could have went wrong?