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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
Methicillin-resistant Staphylococcus aureus
Clostridium difficile
Staphylococcus aureus
2)
Cytochrome oxidase is responsible for the transfer of electrons to _________, thus reducing it to_________
Oxygen, water
Oxygen, H₂O₂
Water, Oxygen
H₂O₂, water
3)
The reagent used for catalase test is
H₂S₂
H₂S
H₂O
H₂O₂
4)
Which one among the following is catalase negative?
Enterobacter aerogenes
Staphylococcus aureus
Enterococcus faecalis
Escherichia coli
5)
Catalase is a common ________ found in nearly all living organisms which are exposed to oxygen
Enzyme
Enzyme inhibitor
Carbohydrate
Cofactor
6)
The presence of catalase enzyme in the test isolate is detected using ________
Chlorhexidine
Hydrogen peroxide
Ethanol
Methanol
7)
The coagulase test is used to differentiate ________ from coagulase-negative staphylococci
Methicillin-resistant Staphylococcus aureus
Pathogenic bacteria
Staphylococcus aureus
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
Helium
Nitrogen
Oxygen
9)
A positive result in the catalase test means that the bacterial species is capable of______________
Splitting water into O₂ and H₂
Breaking down catalase
Breaking down hydrogen peroxide
Fermentation
10)
Catalase enzyme contains four porphyrin ________ (iron) groups that allow the enzyme to react with the hydrogen peroxide
Metalloprotein
Adenosine triphosphate
Nicotinamide Adenine dinucleotide
Heme
11)
The catalase test is used to differentiate members of which genus
Micrococcus
Mycobacterium
All of the above
Streptococcus
Cite this Simulator:
vlab.amrita.edu,. (2011). Catalase and Coagulase Test. Retrieved 29 March 2024, from vlab.amrita.edu/index.php?sub=3&brch=73&sim=703&cnt=3
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