Describe the E. coli culture contamination ?
Answer / priya
1.Culturing in the medium no 4 -endo
2.By microscoping - visible Lac "+"
3.Isolating them in the medium no 1 .
4.checking for biochemical activity
-medium with citrate, medium no 14 (should not be fermented)
-culturing in medium no 15 (formation of indol) indol "+"
-Cyt-oxidase "-"
- the sample contains Gr "-" bacteria, negative results in
oxidase, indol and does not utilise citrate.
-Conclusion contamination E-coli
| Is This Answer Correct ? | 0 Yes | 1 No |
Explain what are blood enzymes?
What are some examples of chemical changes?
Explain some common laboratory techniques?
What do the major organs of the digestive system do?
What is an example of a parasite relationship?
Explain what does an anther have on it?
How do environmental factors affect growth ?
What is the difference between living and non-living things?
How to do Petrifilm?
Order the following from the part of the digestive tract nearest to the beginning to the part nearest to the end: jejunum, ileum, esophagus, duodenum?
Explain the uses of squid fins?
How do keep respiratory system healthy?