Chlamydia practical past Q

Question 1

Infectious form of Chlamydia species is elementary in the body.

Answer 1

TRUE

Question 2

NAD is needed for culturing of Chlamydia species.

Answer 2

FALSE

Question 3

As a result of Stamp-staining chlamydia is green.

Answer 3

FALSE

Question 4

Chlamydia psittaci can cause conjunctivitis in birds.

Answer 4

TRUE

Question 5

Rickettsia species can propagate in lymphoid and endothel cells only.

Answer 5

FALSE, (Rickettsia, Coxiella: propagate in all cell types) and (Ehrlichia, Neorickettsia: lymphoid cells,
endothel cells)

Question 6

Q-fever is caused by Coxiella burnetti.

Answer 6

TRUE

Question 7

Mycoplasmas have pleomorphic shape.

Answer 7

TRUE(pear shaped)

Question 8

Mycoplasmas are obligate anaerobic bacteria.

Answer 8

FALSE(facultative anaerobic)

Question 9

Contagious bovine pleuropneumonia is caused by Mycoplasma bovis.

Answer 9

FALSE, (by M. mycoides ssp. mycoides SC

Question 10

Mycoplasma gallisepticum can cause chronic respiratory disease in birds.

Answer 10

TRUE

Question 11

Fuchsin is used as counter staining in the Stamp-staining.

Answer 11

FALSE, (3% diluted malachite-green)

Question 12

The resistance of reticulate body is higher than resistance of elementary body.

Answer 12

FALSE

Question 13

Trachoma is caused by Chlamydia psittaci in human.

Answer 13

FALSE, (by chlamydia trachomatis)

Question 14

All members of the family Rickettsia are obligate cell parasites.

Answer 14

TRUE

Question 15

The causative agent of Q-fever needs arthropod vectors, because it cannot survive in the
environment for a long time.

Answer 15

FALSE(no vectors are needed)

Question 16

Cat scratch disease is caused by Rickettsia rickettsii.

Answer 16

FALSE(by B. henselae)

Question 17

Mycoplasmas have typical colony forms, like fried eggs.

Answer 17

TRUE

Question 18

Contagious bovine pleuropneumonia is caused by M. mycoides ssp. Mycoides LC.

Answer 18

FALSE, (M. mycoides ssp. mycoides SC)

Question 19

Enzootic pneumonia of swine is caused by Mycoplasma hyopneumoniae.

Answer 19

TRUE

Question 20

Mycoplasmas are the smallest free-living microorganisms.

Answer 20

TRUE

Question 21

Chlamydia pneomoniae has cell wall.

Answer 21

TRUE

Question 22

Chlamydia can be found in infected host body only.

Answer 22

TRUE

Question 23

Chlamydia psittachi causes ornithosis.

Answer 23

TRUE

Question 24

Mycoplasma haemofelis can cause cat haemobartonellosis.

Answer 24

TRUE

Question 25

Heartwater disease of ruminants is caused by Ehrlichia ruminantium.

Answer 25

TRUE

Question 26

Cat scratch disease is caused by Anaplasma sp.

Answer 26

FALSE(by B. henselae)

Question 27

Mycoplasma sp. can cause turbidity in liquid medium.

Answer 27

FALSE(no turbidity)

Question 28

Mycoplasma bovism form fried egg shaped colonies on solid media.

Answer 28

TRUE

Question 29

Contagious bovine pleuropneumonia is caused by M. mycoides spp. mycoides SC.

Answer 29

TRUE