recent
Recent

Micro , tut 1 , Atypical pneumonia

 tut 1 , Atypical pneumonia,micro


Lecture video 


MCQ

1.Chlamydia resemble bacteria in all of the following ways :EXCEPT

a. They possess both RNA and DNA.

b. They multiply by binary fission.

c. They can be inhibited by many antimicrobials effective against bacteria 

 .d. They are closely related to gram-positive bacteria.

2.C. trachomatis can be distinguished from C. psittaci by which of the ?following criteria

A. C. trachomatis is sensitive to sulfonamides. 

B. C. trachomatis has a

 .different lipopolysaccharide antigen

 .C. C. trachomatis can be stained with Giemsa

D. C. psittaci is an obligate prokaryotic parasite.

.E. C. psittaci forms inclusions that contain glycogen

3.Which of the following is the infective form of chlamydia:

a. Reticulate body.

b. Elementary body.

c.Inclusion body

D.None of the above

4.Atypical pneumonia is caused by the following organism:

Infleunza virus. .a

b.Chylamedia Pneumoniae .b

Strept pneumonie. .c

None of the above.d

5.Mycoplasma are characterized by the following EXCEPT:

 .A) Have a true cell wall

b) Highly pleomorphic.

 .c) Rich in cholesterol

 .d) Very small

6. Cold agglutination :Of human group O RBCs at 4°C is used in the diagnosis of

a) Mycobacteria.

B) Staphylococci.

C) Streptococci

D)Mycoplasma

E) Enterobacteriaceae

7.The smallest free living organisms are:

B) .A). Virus Mycoplasma

 .C) Bacterium

 .D) Fungus

 :8.All are features of Mycoplasma except

a.Cell wall is made of cholesterol.

.b Very small in size

c)Does not respond to beta lactams.

 : 9. Which are the clinical manifestations of Mycoplasma

a).Pneumonia

 .b) Urethritis

c) PID. DURI

 .d)Prostatitis

E).All of the above

10.Which of the following is INCORRECT about Mycoplasma?

a) Strict aerobe.

B) Slow rate of growth.

C)Absence of cell wall.

 .d)Resistant to penicillin

11-Which one of the following produces small "fried-egg" colonies on medium containing horse ?Serum and yeast extract

a) Chlamydia

b) Rickettsia.

C) Mycoplasma.

d) All of the above.

12.A distinguishing feature of human mycoplasma species is that :they

A. Stain well with Giemsa, but not by Gram stain.


.B. Contain no bacterial peptidoglycan

c)Are not immunogenic because they mimic host cell membrane components.

 .d)Cannot be cultivated in vitro

 .E) Are dependent on host sources of ATP

13.Which of the following statements is true regarding Legionnaires' ?disease

 .A)Human-to-human spread is common

B) Legionella pneumophila microbes reside in air conditioning systems in large numbers.

C. Antibiotics are ineffective against Legionella pneumophila.

D. Legionella pneumophila is responsible for the majority of pneumonias in normally healthy adults.

 :14.Coxiella burnetii is the causative agent of

A. Tsutsugamushi disease. B. Rocky mountain spotted fever

C.Murine typhus

D. Q fever

15. Q Fever:

 .a) Is an illness confined to the upper respiratory tract

 .b) Has an incubation period of 4 to 6 weeks

 .C) Is most commonly found in tropical regions

D) Is transmitted by the bite of an arthropod.

E. Is febrile illness caused by Coxiella burnetii



Answers:

1.D

2.C

3.B

4.a

5.a

6.b

7.b

8.a

9.e

10.a

11.c

12.b

13.b

14.d

15.e


Data


Feedback

google-playkhamsatmostaqltradent