More Biochemical Test

Other Biochemical Tests

Figure 1. Nitrate Reductase Test

Figure 2. Urease Test

Figure 3. Catalase Test

Figure 4. Oxidase Test

Figure 5. IMViC test results.

Figure 6. IMViC test results.

Figure 7. IMViC test results

Questions

  1. Draw a table and include the observations and results for each figure given above.
  2. Which of these require reagent(s) to complete the test? Give the test, the name and the amount of the reagent?
  3. Which of these tests are involved in oxygen utilization?
  4. Which of these tests are involved in nitrogen metabolism?
  5. Correctly Record the results for the IMViC results (Figure 5 – 7).
  6. Why is the tube D of figure 1 not red like tubes A – C?
  7. What is the role of zinc in the nitrate reductase test?
  8. E. coli gives + + – – results for IMViC test, while E. aerogenes gives – – + +.  Which IMViC results given represents E. coli and E. aerogenes?