1. Complete the table: Describe the colony morphology
NEISSERIA
GONORRHOEAE
MORAXELLA
CATARRHALIS
produces distinctive
small, grayish in color and grey-white, medium to large,
show γ – Hemolysis
raised or dome-shaped, dry,
and brittle colonies which
can be easily lifted off the
medium with a wire loop.
BAP
pinkish-brown and
produces distinctive
translucent, exhibit smooth grey-white, medium to large,
consistency and defined raised or dome-shaped, dry,
margins, and are typically
and brittle colonies which
0.5-1 mm in diameter
can be easily lifted off the
medium with a wire loop.
CHOC
Thayer Martin
small, translucent, grayish,
convex, and shiny with
entire margins
small, translucent, raised,
moist gray white colonies
ith entire margins
2. Complete the table: Biochemical reactions
GLUCOSE MALTOSE LACTOSE SUCROSE BUTYRA
OXIDASE ON CTA
ON CTA
ON CTA
ON CTA
TE DISK
Neisseria
gonorrhoeae
+
+
-
-
-
-
Neisseria
meningitidis
+
+
+
-
-
-
Moraxella
catarrhalis
+
-
-
-
-
+