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What does the enzyme coagulase do?
The coagulase enzyme activates prothrombin, which causes fibrin formation around the bacteria (ie Staph aureus), protecting it from phagocytosis. Of all 3 pathogenic staphylococcal species, only Staph aureus is coagulase positive.
Test used for the identification of Staphylococcus aureus?
staph. aureus test positive for catalase test and coagulase test consecutively
What is difference between tube coagulase and slide coagulase test?
tube coagulase is done in test tube while slide coagulase is done on slide.thnk you all! cheeres!
What gram-negative diplococci bacteria that causes purple rash?
Staph
Is staphylococcus saprophytic is a harmfully bacteria?
Yes. It is coagulase negative and it is the cause of uti in sexually active young women. Often referred to as honeymoon cystitis.
What does the enzyme coagulase do?
The coagulase enzyme activates prothrombin, which causes fibrin formation around the bacteria (ie Staph aureus), protecting it from phagocytosis. Of all 3 pathogenic staphylococcal species, only Staph aureus is coagulase positive.
What is a CNS and what do they do?
coagulase-negative staphylococci (CNS)
Test used for the identification of Staphylococcus aureus?
staph. aureus test positive for catalase test and coagulase test consecutively
What is difference between tube coagulase and slide coagulase test?
tube coagulase is done in test tube while slide coagulase is done on slide.thnk you all! cheeres!
Why is it important to use fresh cultures in a coagulase test?
Coagulase is a protein enzyme. It is important to use fresh cultures in a coagulase test because coagulase expression is highest during the log phase of growth.
Is Staph epi Voges-Proskauer positive or negative?
positive
What is bound coagulase?
Coagulase is a protein produced by several organisms, namely Staphylococcus and in laboratories is used to distinguish different isolates.Bound coagulase is part of the larger family of MSCRAMM.
What gram-negative diplococci bacteria that causes purple rash?
Staph
How could you differentiate between e coli and staph epidermidis using a simple stain?
E.coli is a gram negative rod mostly isolated from urine while staph is a gram positive cocci. You can differentiate them by color. E. Coli is Pink which is negative while Staph is Purple with is positive.
What are 2 types of staphylococal coagulase?
2 types of staphylococal coagulase are 1.staph.epidermidis/albus2.staph.aureus
Is staphylococcus saprophytic is a harmfully bacteria?
Yes. It is coagulase negative and it is the cause of uti in sexually active young women. Often referred to as honeymoon cystitis.
What are the differences between staphylococcus aureus and enterococcus faecalis biochemical tests?
E.coli is a gram negative rod mostly isolated from urine while staph is a gram positive cocci. You can differentiate them by color. E. Coli is Pink which is negative while Staph is Purple with is positive.
