Bacterial Identification

Question 1

Name a non-spore forming, aerobic, gram positive bacilli

Answer 1

Corynebacterium diphtheriae

Question 2

Which staphylococci tests positive with the coagulase test?

Answer 2

Staph. aureus

Question 3

Which streptococci has only partial haemolysis?

Answer 3

Strep. pneumoniae

Question 4

What colour does beta-haemolysis turn blood agar?

Answer 4

Turns it clear

Question 5

What colour are gram negative bacteria stained under microscope?

Answer 5

Red

Question 6

Name a gram negative curved bacilli

Answer 6

Helicobacter pylori

Question 7

What is neisseria meningitidis?

Answer 7

A gram negative cocci

Question 8

Name two types of aerobic gram negative bacilli

Answer 8

Lactose and non-lactose fermenters

Question 9

Name the bacteria under Group D of beta-haemolysis

Answer 9

Enterococcus

Question 10

Name a gram positive anaerobic bacilli

Answer 10

Clostridium Difficile

Question 11

What shape are cocci?

Answer 11

Round

Question 12

What bacteria causes TB?

Answer 12

Mycobacterium tuberculosis

Question 13

How do you differentiate between neisseria species and moraxella catarrhalis?

Answer 13

Biochemical tests