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brom cresol purple

indicator in MIO media that tests for decarboxylation of ornithine



positive result is a lavender-purple color



A



hydrogen peroxide

H2O2



used to test for organism's possession of catalase



copious amounts of bubbles are evidence for release of O2 as peroxide is broken down



2H2O2 + O2



iodine

indicates the presence or absence of starch



agar

solidifying agent purified from marine algae

colonial morphology

size, color, shape, elevation, consistency, ...
Microbiology 250 Lab Practical
Last document update:
ago
brom cresol purple

indicator in MIO media that tests for decarboxylation of ornithine



positive result is a lavender-purple color



A



hydrogen peroxide

H2O2



used to test for organism's possession of catalase



copious amounts of bubbles are evidence for release of O2 as peroxide is broken down



2H2O2 + O2



iodine

indicates the presence or absence of starch



agar

solidifying agent purified from marine algae

colonial morphology

size, color, shape, elevation, consistency, ...
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