QuestionSBA
QuestionChoice
*S. haemolyticus* is a coagulase-negative bacteria - so would not cause a positive coagulase test such as the one seen in test tube A.
10000553
c
*Staphylococcus haemolyticus*
QuestionChoice
Test tube A shows a positive coagulase test as macroscopic clotting has occurred. This can be a positive identification of *S. aureus* which is a coagulase-positive bacteria.
10000551
a
*Staphylococcus aureus*
QuestionChoice
All streptococcus bacteria are catalase-positive and coagulase-negative, so this would not cause a positive coagulase test.
10000555
e
*Streptococcus pneumoniae*
QuestionChoice
*S. epidermis* is a coagulase-negative bacteria - so would not cause a positive coagulase test such as the one seen in test tube A.
10000552
b
*Staphylococcus epidermis*
QuestionChoice
All streptococcus bacteria are catalase-positive and coagulase-negative, so this would not cause a positive coagulase test.
10000554
d
*Streptococcus pyogenes*
Concept
Chapter
2693
3787
Staphylococcus
Topic
148
Microbiology
12657
Picture
1504
Image 2.jpg
images/4xstq9du1682079595792.jpg
images/4xstq9du1682079595792_256.jpg
images/4xstq9du1682079595792_512.jpg
GQgODIJ+damviIeHiXaQYDsLxQ==
Topic
148
Microbiology
A sample of bacteria was added to the coagulase-containing test tube labelled A. Test tube B is left for comparison. Which of the following bacteria may test tube A contain?

[lightgallery]
a