Reference no: EM132604455

1) What is the function of bacterial exoenzymes?

2) If a specific biochemical test requires the addition of a reagent, at what point are these reagents applied in the testing procedure?

3) What difficulties does one encounter when trying to differentiate bacteria on the basis of physiological tests?

4) The tests for the hydrolysis of starch, casein and triglycerides are similar in their set-up. How do the methods for the detection of hydrolysis differ between these three tests?

5) In the context of these biochemical tests, what does it suggest (about the media or specific conditions) if there is NO growth in your positive control test media after incubation?

6) In the context of these biochemical tests, what does it suggest (about the media or specific conditions) if there IS growth in your negative control test media after incubation? 7) Now that you have covered several different kinds of media, do you think that any of the media to test biochemical activities can be selective and/or differential in nature? You can support your answer with any example.

8) For which of the hydrolysis tests would a positive test result be expected for the etiological agent of acne, Propionibacterium acnes?

9) Kligler's iron agar and SIM are multiple test media. Both media are stabbed but for different reasons.