A Positive Pyrrolidonyl Arylamidase (PYR)test Was Observed on a Species

question 33

Multiple Choice

A positive pyrrolidonyl arylamidase (PYR) test was observed on a species of Enterococcus.What color should be observed for this reaction?

• A)Purple
• B)Red
• C)Green
• D)Pink

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Definitions:

Simplify

The process of reducing an expression to its simplest form, making it easier to understand or solve.

\(8^x\cdot 8^{x-1}\)

An expression that can be simplified to \(8^{2x-1}\) using the properties of exponents.

\(10,000(1.07)^{4t}\)

An exponential growth equation, where \(10,000\) is the initial quantity and \(1.07\) is the growth factor applied every period \(t\), scaled by a factor of 4.

\(10,000(1.09)^{3t}\)

An exponential function, often used in finance to calculate compounded interest or investment growth over time.