Answer these questions with a few short sentences, or in dot points. Sometimes d

Question

Answer these questions with a few short sentences, or in dot points. Sometimes diagrams are a good way to answer the question, if so be sure to use labels and explain the diagram. (Generally ,1 mark per fact.)

1. What enzyme that assists growth in the urinary tract do all of the following organisms possess?mirabilis,?Ureaplasma urealyticum, S. saprophyticus

2. Explain why it can be difficult to interpret the culture findings from a swab taken from a bedsore? (1 marks)

3. What is an extended spectrum b-lactamase? (4 marks )

4. What is the difference between the minimal inhibitory concentration (MIC) and the minimal bactericidal concentration (MBC) of an antimicrobial agent? (3 mark)

5. In disc susceptibility testing, what would happen to the zone diameter if the agar was poured too thinly? Explain your answer.

6. What is meant by surrogate testing of an antimicrobial agent? 2 marks

Explanation / Answer

1. The enzyme that assists growth in the urinary tract which is possessed by of the mentioned organisms is urease.

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