In the identification of mycobacterial isolates,the catalase test involves the:
A)breakdown of phenolphthalein disulfate into phenolphthalein and other salts.
B)measurement of the height of a column of bubbles of oxygen.
C)production of a lipase that is able to hydrolyze the catalase.
D)development of a pink-to-red color,indicating a positive result.

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Catalase testing of mycobacterial isolates is assessed in more than one way: by the relative activity of the enzyme,as determined by the height of a column of bubbles of oxygen formed;by the reaction of enzyme and substrate;and by the ability of the catalase enzyme to remain active after heating.

In the Identification of Mycobacterial Isolates,the Catalase Test Involves The