University of Texas, Rio Grande Valley - CLSC 2429 1)When an agar plate is inoculated, why is the loop sterilized after the initial inoculum us put on? Distinguish between pure culture and a mixed culture

University of Texas, Rio Grande Valley - CLSC 2429

1)When an agar plate is inoculated, why is the loop sterilized after the initial inoculum us put on?

2. Distinguish between pure culture and a mixed culture.
3. Define a bacterial colony. List four distinguish characteristics by which bacterial colonies may be distinguished.
4. Why does the streag ethod you used to inoculate your plates result in isolated colonies?

6. .

   5.Why was a blood agar, rather than a nutrient agar, plate used for the culture from your

   mouth?

   6.

   Are the large numbers of microorganisms found in the mouth cause for concern?

   Explain.

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