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Biotechnology and Biomedical Engineering
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Microbiology Virtual Lab I
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Catalase and Coagulase Test
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Catalase and Coagulase Test
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Theory
Procedure
Self Evaluation
Animation
Assignment
Reference
Feedback
1)
Coagulase is an enzyme produced by ________ that converts fibrinogen to fibrin
Pathogenic bacteria
Clostridium difficile
Staphylococcus aureus
Methicillin-resistant Staphylococcus aureus
2)
Cytochrome oxidase is responsible for the transfer of electrons to _________, thus reducing it to_________
Oxygen, H₂O₂
H₂O₂, water
Water, Oxygen
Oxygen, water
3)
The reagent used for catalase test is
H₂O
H₂O₂
H₂S
H₂S₂
4)
Which one among the following is catalase negative?
Enterococcus faecalis
Escherichia coli
Enterobacter aerogenes
Staphylococcus aureus
5)
Catalase is a common ________ found in nearly all living organisms which are exposed to oxygen
Enzyme inhibitor
Enzyme
Cofactor
Carbohydrate
6)
The presence of catalase enzyme in the test isolate is detected using ________
Hydrogen peroxide
Chlorhexidine
Ethanol
Methanol
7)
The coagulase test is used to differentiate ________ from coagulase-negative staphylococci
Methicillin-resistant Staphylococcus aureus
Staphylococcus aureus
Pathogenic bacteria
Clostridium difficile
8)
Catalase is frequently used by cells to rapidly catalyze the decomposition of hydrogen peroxide into less reactive gaseous ________ and water molecules
Carbon
Nitrogen
Oxygen
Helium
9)
A positive result in the catalase test means that the bacterial species is capable of______________
Splitting water into O₂ and H₂
Breaking down hydrogen peroxide
Fermentation
Breaking down catalase
10)
Catalase enzyme contains four porphyrin ________ (iron) groups that allow the enzyme to react with the hydrogen peroxide
Adenosine triphosphate
Metalloprotein
Heme
Nicotinamide Adenine dinucleotide
11)
The catalase test is used to differentiate members of which genus
All of the above
Micrococcus
Streptococcus
Mycobacterium
Cite this Simulator:
vlab.amrita.edu,. (2011). Catalase and Coagulase Test. Retrieved 27 April 2024, from vlab.amrita.edu/index.php?sub=3&brch=73&sim=703&cnt=3
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