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MIC Practical 1 misc
| Question | Answer |
|---|---|
| Cocci | spheres |
| Cocci in clusters | spheres clustered together |
| Cocci in chains | spheres linked together in chain-like arrangements |
| Bacilli | rod-shaped |
| Spirals | spiral shaped |
| A gram-positive cocci | Streptococcus |
| A gram-positive bacillus | Bacillus or Clostridium |
| A gram-negative cocci | Neisseria gonorrhea |
| A gram-negative bacillus | Escherichia coli |
| A spore-forming organism | Bacillus or Clostridium |
| An acid-fast organism | Mycobacterium |
| How would you identify the mold Aspergillus? | wooly, green; conidiospores |
| How would you identify the mold Penicillium? | powdery, dark green; conidiospores |
| How would you identify the mold Rhizopus? | cottony, black spores; sporangiospores |
| Example of a genus name of yeast | Candida |
| Explain why we use Sabouraud Dextrose Agar to grow fungi. | Because fungi grows at a lower pH than most organisms |
| Transformation | Bacteria take free or “naked” DNA from the environment and are able to translate and express that DNA for their own purposes |
| Explain the use of a candle jar. | Plates are put in a jar along with a candle;lid is sealed. As flame burns, O decreases and the flame goes out. Oxygen is present, but at a lower percentage than in the atmosphere. The concentration of carbon dioxide increases as a result of the flame. |
| Facultative Anaerobic organisms | Grows in oxygen, in candle jar, and in GasPak |
| Obligate Anaerobic organisms | Grows only in GasPak |
| Microaerophilic organisms | Grows best in the candle jar; grows right at the point where the oxygen level is diminishing in the thioglycollate broth |