Bacteria Flashcards
gram staining process acronyms
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outline gram staining process
- fixation 2. add crystal violet 3. Add iodine 4. Decolourise with alcohol until no more purple comes off the side 5. Add safranin (pink)
gram positive results
will stain purple due to sufficient peptidoglycan layer
gram negative results
will stain pink- insufficient peptidoglycan layer to retain safranin
Gram positive cocci’s
staplyloccocus
streptococcus
which test is used to differentiate straphyloccocus
coagulase
staphyloccus bacteria with a negative coagulase test
staphylococcus epidermidis
staphyloccus bacteria with a positive coagulase test
Staphylococcus aureus
which test is used to differnetiate streptooccus bacteria
Hemolysis
partial hemolysis
alpha
complete haemolysis
beta
no haemoloysis
Y- gamma
alpha streptococci
partial haemolysis
- Streptococcus pneumoniae
Beta streptococci
complete haemolysis
- streptococcus pyrogenes