3.1.1 Gram negative Cocci Characteristics (Neisseria and Moraxella)

Question 1

What is the Family of Neisseria?

Answer 1

Neisseriaceae

Question 2

How many species is in Neisseria?

Answer 2

12 species and biovars

Question 3

What are the Genus of Neisseriaceae?

Answer 3

Neisseria
Kingella
Eikenella
Simoneseella
Alysiella

(SAKEN)

Question 4

What species of Neisseria are human pathogens?

Answer 4

N. gonorrhoeae
N. meningitidis
N. weaveri

Question 5

What are the characteristics of Neisseria?

Answer 5

Aerobic (MOSTLY capnophilic)
Diplococci
Gram negative
Non Motile
Non spore forming
Oxidase Positive
Catalase positive
Glucose fermenter

Question 6

Neisseria are catalase POSITIVE exept?

Answer 6

N. elongata
N. baciliformis

Question 7

What Neisseria has a rod shaped?

Answer 7

N. elongata
N. baciliformis
N. weaver

Question 8

Neisseria are glucose fermenter except?

Answer 8

Moraxella catarrhalis

Question 9

Moraxella catarrhalis is considered as what type of fermenter?

Answer 9

Asaccharolytic

(Can’t ferment carbohydrates)

Question 10

Neisseria is a normal flora of what part of the body?

Answer 10

Urogenital
Upper respiratory tract

Question 11

What are the primary pathogens of Neisseria?

Answer 11

N. gonorrhoeae
N. meningitidis

(URT carriers)

Question 12

Neisseria causes infections in animals but when it comes to human, it is an accidental infection

Answer 12

TRUE

Question 13

What is the normal biota for Moraxella catarrhalis?

Answer 13

URT

colonizes female genital tract

Question 14

What is the normal biota for Neisseria gonorroheae?

Answer 14

Not part of normal biota

Question 15

Neissiera meningitidis

Answer 15

Colonizes oropharyngeal and nasopharyngeal mucous membrane

Question 16

Humans are the only as natural host for N. gonorrhoeae which is never considered as normal microbiota

Answer 16

TRUE

Question 17

What is the MOT of N. gonorrhoeae?

Answer 17

Sexually transmitted

Question 18

What is the MOT of N. meningitidis?

Answer 18

Respiratory droplets