MICROCOCCUS

Question 1

Gram positive cocci in tetrads, cuboidal packets
(4) or sarcinae (8,16, 32)

Answer 1

Micrococcus spp.

Question 2

Grows on 5% NaCI but not on 7.5% NaCI

Answer 2

Micrococcus spp.

Question 3

2 SPECIES OF MICROCOCCUS

Answer 3

micrococcus luteus
micrococcus lylae

Question 4

m. luteus produce _______ pigmented colony

Answer 4

yellow

Question 5

added to a small amount of growth smeared on a filter paper.

Answer 5

Tetra-methyl-paraphenylenediamine dihydrochloride

Question 6

(Micrococci are oxidase - positive and
turn _____________

Answer 6

dark blue within 2 minutes

Question 7

An isolate is streaked
onto an SBA Mueller-Hinton medium.

Answer 7

Bacitracin susceptibility test

Question 8

ARE SUSCEPTIBLE TO BACITRACIN

Answer 8

MICROCOCCI

Question 9

Quality Control of micrococci (positive)

Answer 9

streptococcus pyogenes (susceptible)
Micrococcus luteus (susceptible)

Question 10

Quality Control of micrococci (negative)

Answer 10

Streptococcus agalactiae - resistant
Staphylococcus aureus - resistant

Question 11

tested in the same manner as for
bacitracin susceptibility test, but this uses a disk containing 100 ug furazolidone

Answer 11

furazolidone

Question 12

resistant to furazolidone

Answer 12

micrococci