Gram Negative Bacteria. - gd luck Flashcards
Name the four categories of Gram - bacteria.
Cocci, Bacilli, Curved Bacilli , cocco - bacilli
How can bacilli be further categorised?
Anaerobic, that grows on MacCartneys. Or just anaerobic.
How do you further categorise anaerobic bacilli that grows on MacCartneys.
Fermentors and Non fermentors
What are coliforms? What categories of gram negative bacteria are they found in?
They are organisms in the species Enterobacteriaceae . They are found in the lactose fermentor and non- fermentor category of anaerobic bacilli that grows on MacCartneys.
What different species of cocci can be determined by biochemical tests.
Moraxella catarrhalis
Neisseria gonnorehea
Neisseria Meningitidis
What can moraxella cause?
Respiratory tract infections - especially in those with underlying lung pathologies.
What can neisseria gonorrhoea cause?
Urertisis in males and Pelvic inflammatory disease in females.
are escherichia coli and klebsiella species lactose fermentors or lactose non - fermentors
Lactose fermentors.
which species lactose non - fermentor is not a coliform?
Pseudomona species
Where are pseudomonas infections found?
Drains, mops, sinks, can contaminate medical equipment.
why are pseudomonas species difficult to control?
They are not sensitive to many antibiotics.
What problems can pseudomonas cause?
sepsis, pneumonia, UTIS in hospital
Respiratory tract infection in cystic fibrosis
Name the three coliform species in lactose non- fermentors.
Proteus species
Shigella Species
Salmonella Species
What does proteus species cause?
UTI
What does Shigella Species cause?
Dihorea and dysentry
What are two bacteria within the salmonella species?
Salmonella enterica
Salmonella typhi
What does salmonella enterica cause?
Enterocolitis - could have bloody dihorrea - can be invasive.
What does salmonella typhi cause?
typhoid and constapation
Name three species found in anaerobic bacilli that does not grow on Macartneys.
Bacteriodes species
Prevotella Species
porphyomonas species
Name a bacteriodes species
and say what it causes.
Bacteriodes fragilis - part of normal fauna of colon but can cause intra abdominal abscess.
Name 3 curved bacilli species.
campylobacter species
Vibrio species
Helicobacter pylori
Where is campylobacter species found and what can it cause?
Chickens - ingested by the faecal oral route.
Causes foul smelling, bloody dihorrea.
What does helicobacter pylori cause?
stomach ulcers
Name a type of cocco-bacterial.
haemophilus influenza.
What does haemophilus influenza cause?
respiratory tract infection
type B used to cause meningitis.
What are two lactose fermentors, that grow on MaCarthneys, anaerobic , bacilli
escherichia coli
klebsiella species
What does escherichia coli cause?
dihorrea and UTI
What does klebsiella cause?
UTI and pneumonia
