What is the importance of catalase to certain bacteria

Reference no: EM133632512

Assignment

Textbook: Lab manual and workbook in microbiology : Applications to patient care Morello, Josephine

A. Explain the biochemistry of the urease reaction.
B. What is the purpose of the phenol red in the urea broth medium?
C. What is in urea broth?
D. What is the importance of catalase to certain bacteria?
E. What two groups of bacteria can be differentiated with the catalase test?
F. The oxidase test is used to differentiate among which groups of bacteria?
G. What metabolic property characterizes bacteria that possess oxidase activity?
H. What is the purpose of the phenol red in the phenol red broth for carbohydrate fermentation?
I. What is the function of the Durham tube in the phenol red broth for carbohydrate fermentation tube?
J. What is the color of phenol red at an acid pH?
K. For what bacteria would you use the TSI test?
L. How do you distinguish between an acid and alkaline slant.
M. What is the purpose of thiosulfate in the TSI agar?
N. What are the ingredients of starch agar?
O. What is the function of the 1 N HCl added to the DNase plates after incubation?

Reference no: EM133632512

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