Unformatted text preview: be the same. This is used to distinguish which enteric bacteria genus ? What can we say about an organism that produces a positive reaction ? Describe the positive reaction. 8. How are organisms inoculated into a tube of agar when the purpose is to determine if the bacteria are motile ? The media that will be used in lab. does not contain tetrazolium. How do you think motility will be determined ? 9. What type of organisms will grow on MacConkey Agar. What other information can be obtained about these organisms ? Name one organism that would grow. EMB agar selects for the same type of organism. What do the initials stand for ? 10. Define coliform and give one example. 11. The production of acid and/or gas when bacteria are grown in the presence of a single specific sugar can be used to distinguish certain species. Which gases may be produced and how are they detected ? How is the presence of acid detected ? How is growth determined ?...
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- Spring '08
- Bacteria, MacConkey Agar, positive reaction, enteric bacteria, term enteric organisms