Name DATA Date Lab Section I was present and performed this exercise (initialis)
ID: 210856 • Letter: N
Question
Name DATA Date Lab Section I was present and performed this exercise (initialis) SHEET 4-4 (continued) Would remoual of sodium chloride from MSA alter the medium's sensitivity or specificity Explain your answer (See pages 8 and 9, "A Word About Experimental Design," for assistance with these terms,) 8 Suppose a mistake is made in preparing a batch of MSA and the starting pH is 7.4 instead of 7.0-7.2. Would Word About that affect the medson's sensitivity or specificity? Explain your answer, (See pages 8 and 9, "A Experimental Design," for assistance with these terms.) With the duversity of microorganisms in the world, bow can a single test such as MSA be used to "comfidenthy" identify Staphylococcus aureus? Hint: Consider the sample source and assumptions being made.) 9Explanation / Answer
Answer:
7. It would alter the the specificity because all bacteria would grow instead of just the bacteria.
8. Sensitivity is getting false nagatives. We are looking for a colorchange due to acid production. If you start at a higher pH, more alkaline, then it will take longer to change the color.
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