MODULE 2: COAGULASE & CATALASE TEST

Question 1

Coagulase is a cell-associated and diffusible enzyme that converts _____ to _____ which causes _____.

Answer 1

fibrinogen; fibrin; clotting

Question 2

Differentiate S. aureus from S. epidermidis.

Answer 2

S. aureus is coagulase positive and pathogenic

S. epidermidis is coagulase negative and non pathogenic

Question 3

Two methods used in Coagulase and Catalase test.

Answer 3

Slide Test - has faster results

Tube Test - is more accurate (definitive test)

Question 4

An enzyme that breaks down Hydrogen peroxide into water and oxygen gas (w/c explains the bubbling in the catalase test)

Answer 4

Catalase