1) Is a catalase test performed on colonies from a BAP? State reasons to support your answer?
2) Explain how a catalase test helps in distinguish between Staphylococcus from Streptococcus sp.
3) List five gram negative bacilli which are oxidize positive and state a limitation for this test.
4) What common gram positive organisms are positive from the PYR test?
5) Describe the principle of the indole test method.