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MicrobiologyLab24

Questions about "Catalase and Oxidase Production"

QuestionAnswer
________ is a respiratory enzyme found in most aerobic organisms. It is tested for by the addition of the chemical reagent ________ ________. Catalyase, hydrogen peroxide
The catalase test is especially valuable in distinguishing between the Gram-positive cocci ________(catalase +) and ________(catalase -) and in distinguishing between the Gram-negative long rods ________(catalase +) and ________(catalase -). Staphylococcus (catalase +) Streptococcus (catalase -) Bacillus (catalase +) Clostridium (catalase -)
________ organisms do not produce catalase and are poisoned by the accumulation of hydrogen peroxide. Anaerobic
An obligate anaerobe would be expected to give a ________ test for oxidase. negative
A ________ color appears in a positive oxidase test. dark purple
The chemical ________________ is added to test for the production of oxidase. tetramethyl-para-phenylenediamine HCl (Kovac's oxidase reagent)
A positive oxidase test depends upon the presence of absence of ________ in the cell. c type cytochromes
True or false: Oxidase production has no value in classification. False.
Created by: NeuroHeart