Bacterial Identification

Question 1

Listeria monocytogenes and Coyrnebacterium species are what type of bacteria?

Answer 1

Gram + Bacilli, Aerobic, non-spore forming

Question 2

Bacillus species eg. anthracis, subtilis are what type of bacteria?

Answer 2

Gram +, aerobic, spore forming

Question 3

Name a spore forming, anaerobic Gram + bacilli

Answer 3

Clostridium species

Question 4

S. aureus are what type of bacteria?

Answer 4

Gram + Staph, coagulase positive

Question 5

Name some coagulase negative Gram + Staphylococci

Answer 5

S. saprophyticus, S. epidermidis

Question 6

How are Gram + Streptococci classed

Answer 6

Partial (a) , complete (B) and non-haemolytic characteristics

Question 7

Strep. pneumoniae and S. viridans are what type of bacteria?

Answer 7

Gram + Streptococci, partial haemolytic

Question 8

Distinction of Gram + is by what biochemical test?

Answer 8

Coagulase test

Question 9

Strep. pyogenes are what type of bacteria?

Answer 9

Gram + strep, complete haemolysis

Question 10

How are completely haemolytic Gram + classified?

Answer 10

Lancefield groups of serotypes

Question 11

Enterococcus faecalis and Enterococcus faecium are what type of bacteria?

Answer 11

Gram positive Streptococci, non haemolytic

Question 12

Neisseria species eg. meningitidis and gonorrhoea are what type of bacteria?

Answer 12

Gram - cocci

Question 13

How are Gram - cocci distinguished? E.g. Morexella and Neisseira

Answer 13

Biochemical tests

Question 14

Name three genus of Gram - curved bacilli

Answer 14

Campylobacter
Vibrio
Helicobacter

Question 15

Gram - bacilli are initially distinguished by?

Answer 15

Aerobic or Anaerobic

Question 16

E. coli are what type of bacteria?

Answer 16

Gram - bacilli, aerobic, lactose fermenting

Question 17

What media is used to identify Gram - bacilli, aerobic, lactose fermenting bacteria?

Answer 17

MacConkeys agar

Question 18

Name the four main species of aerobic non-lactose fermenting aerobic Gram - bacilli

Answer 18

Pseudomonas
Proteus
Shigella
Salmonella

Question 19

Name 3 species of Gram -, anaerobic bacilli

Answer 19

Bacteroides
Prevotella
Porphyromonas

Question 20

Haemophilus influenzae is what type of bacteria?

Answer 20

Gram - cocco-bacilli

Question 21

Pseudomonas aeruginosa is what type of bacteria?

Answer 21

Gram - aerobic non lactose fermenting bacilli - non coliform

Question 22

Proteus, Shigella and Salmonella are what type of bacteria?

Answer 22

Gram - aerobic non lactose fermenting bacilli (coliforms)

Question 23

S. saprophyticus and S. epidermidis are what type of bacteria?

Answer 23

coagulase negative Gram + Staphylococci

Question 24

Shigella is what type of bacteria?

Answer 24

Gram - Bacilli, aerobic, non-lactose fermenting

Question 25

bacteroides are what type of bacteria

Answer 25

Gram - anaerobic bacilli

Question 26

E. coli is what kind of bacteria?

Answer 26

Gram - bacilli, aerobic, lactose fermenting

Question 27

viridans streptococci are what type of bacteria?

Answer 27

Gram + steptococci, partially haemolytic

Question 28

Listeria monocytogenes are what type of bacteria?

Answer 28

Gram + Bacilli, Aerobic, non-spore forming