NEISSERIA SPECIES AND MORAXELLA CATARRHALIS

Question 1

give the respiratory
motility
and endospore capability of neisseria sp

Answer 1

aerobic
non motile
non spore forming
gram negative diplococci

very basic, huminga lang ang kaya

Question 2

most neisseria are diplococci, what are the species that are rod shaped

Answer 2

neisseria elongata
neisseria weaveri
neisseria bacilliformis

Question 3

all species of neisseria are cytochrome oxidase and catalase positive except

Answer 3

Neisseria elongata subsp, nitroreducens

neisseria bacilliformis

Question 4

the natural habitats of neisseria spp are the

Answer 4

mucous membranes of the respiratory and urogenital tracts of various animals

Question 5

are the primary human pathogens of the genus

Answer 5

Neisseria gonorrhoeae - gonococci
Neisseria meningitidis - meningococci

Question 6

this specie of Neisseria genus is always considered as pathogenic and not part of the normal biota

Answer 6

Neisseria gonorrhoeae

Question 7

this specie of Neisseriae genus is found as a commensal inhabitant of the upper respiratory tract of carriers, but it can also become an invasive pathogen

Answer 7

Neisseria meningitidis

Question 8

both N.gonorrhoeae and N.meningitidis requires what component for growth

Answer 8

iron

Question 9

they compete with their human host by binding to human transferrin to specific surface receptors.

Answer 9

N.gonorrhoeae and N.meningitidis

Question 10

N.gonorrhoeae and N.meningitidis are found in what infected host

Answer 10

humans only

Question 11

other species aside from N.gonorrhoeae and N.meningitidis

are found in infected ____

Answer 11

warm-blooded animals

Question 12

pathogenicity of N.gonorrhoeae and N.meningitidis

Answer 12

primary pathogen

Question 13

aside from N.gonorrhoeae and N.meningitidis

what are the pathogenicity of other species

Answer 13

opportunistic pathogen

Question 14

a specie of Neisseria which is considered as a commensal in the upper respiratory tract of dogs, has been isolated from dog bites in humans

Answer 14

Neisseria weaveri

Question 15

is an acute pyogenic infection of nonciliated columnar and transitional epithelium

Answer 15

gonorrhea

Question 16

the first use of the term gonorrhea, meaning a “_________” was in the second century when the urethral discharge was mistaken for semen

Answer 16

flow of seed

Question 17

gonorrhea was also called ___________, from the french word clapoir meaning __________

Answer 17

the clap - means brothel

Question 18

is the most common site of infection in women

Answer 18

endocervix

Question 19

newborn can acquire ___, an gonococcal eye infection, during vaginal delivery through an infected birth canal

Answer 19

ophthalmia neonatorum

Question 20

it is an important etiologic agent of endemic and epidemic meningitis and meningococcemia and rarely pneumonia, purulent arthritis or endopthalmitis

Answer 20

N.menigitidis

Question 21

is a commensal of the upper respiratory tract isolated only from humans

Answer 21

moraxella catarrhalis

Question 22

this ogranism has been reported as the third most common cause of acute otitis media and sinusitis in children

Answer 22

moraxella catarrhalis

Question 23

the term ___ for the colony of Moxarella catarrhalis has been used to describe it because it remains intact when push across the plate with a loop

Answer 23

hockey puck

Question 24

older colonies of moxarella catarrhalis may give a ___ appearance

Answer 24

wagon-wheel

Question 25

Neisseria gram _______ oxidase ______ respiration: _______ increased growth in: ________

Answer 25

gram negative diplococci oxidase positive aerobic organisms increased growth in increased CO2 and humidity

Question 26

how to differentiate M.catarrhalis to Neisseria spp.

Answer 26

M.catarrhalis is tributyrin hydrolysis positive or DNase positive

Question 27

50% cases in women may be asymptomatic for Neisseria gonorrhoeae, which may lead to complications such as

Answer 27

pelvic inflammatory disease sterility, ectopic pregnancy perihepatitis (fits-hugh-curtis syndrome )

Question 28

selective medium allows the isolation of N.gonorhoeae and N. meningitidis

Answer 28

modifed thayer-martin agar

Question 29

which test can be used for definitive identification of both N.gonorrhoeae and N.meningitisis

Answer 29

rapid carbohydrate utilization

Question 30

which opportunistic pathogen is asaccharolytic, tributyrin, hydrolysis positive, and DNase positive

Answer 30

moraxella catarrhalis

Question 31

entrance of N.menigitidis into the bloodstream may lead to which condition

Answer 31

meningococcemia meningitis waterhouse-friderichsen syndrome

Question 32

which test can accurately differentiate N,lactamica from N,meningitidis

Answer 32

ONPG

Question 33

which organism is an opportunistic pathogen associated with otitis media and sinusitis in children

Answer 33

moraxella catarrhalis

Question 34

describe the morphology of M.catarrhalis and how it is identified in the lab

Answer 34

moraxella catarrhalis will grow on SBA and CHOC agar ----> smooth, opaque, gray to white colonies oxidase positive catalase posotive asaccharolytic Dnase positive butyrate esterase positive reaction tributyrin hydrolysis positive

Question 35

are placed into the eyes of newborns to prevent infections caused by Neisseria gonorrhoeae

Answer 35

erythromycin eye drops