Podcast
Questions and Answers
Which of the following is an example of a water-insoluble pigment produced by nonfermenters?
Which of the following is an example of a water-insoluble pigment produced by nonfermenters?
- Flavins
- Melanins
- Carotenoids (correct)
- Quinones
What is the purpose of adding a layer of sterile mineral oil to one of the tubes?
What is the purpose of adding a layer of sterile mineral oil to one of the tubes?
- To prevent bacterial growth
- To create aerobic conditions
- To enhance pigment production
- To create anaerobic conditions (correct)
If the medium in the anaerobic tube turns yellow, what does it indicate?
If the medium in the anaerobic tube turns yellow, what does it indicate?
- The bacteria are producing pigments
- The bacteria are motile
- The bacteria are fermenting glucose (correct)
- The bacteria are oxidizing glucose
Which pigment is described as having a violet or purple color?
Which pigment is described as having a violet or purple color?
What is the purpose of using a semisolid agar medium for testing motility?
What is the purpose of using a semisolid agar medium for testing motility?
Which of the following is an example of a water-soluble pigment?
Which of the following is an example of a water-soluble pigment?
What is the recommended timeframe for making an initial reading of motility in the semisolid agar medium?
What is the recommended timeframe for making an initial reading of motility in the semisolid agar medium?
Which pigment is described as having a red or maroon color?
Which pigment is described as having a red or maroon color?
If the tube without oil turns yellow, but the tube with oil does not, what does it indicate?
If the tube without oil turns yellow, but the tube with oil does not, what does it indicate?
Which method is suggested as potentially more accurate for detecting motility of nonfermentative bacilli?
Which method is suggested as potentially more accurate for detecting motility of nonfermentative bacilli?
