MCQ Microbiology (Bacteria and Gram Staining) with answer key Part- 11

 

Microbiology MCQ (Quiz-11)  

Bacteria and Gram Staining

Multiple choice questions with answer key

S. Y. B. PHARM Sem - III  (UNIT - 2)  

AS PER PCI SYLLABUS

1. Streptococcus pyogenes classification is based on

  A) Protein T  
B) Polysaccharide C
C) Protein M
D) Protein R

... Answer is : C) Protein M

2. Streptolysin O is inactivated by

A) carbon dioxide
B) Serum
C) Nitrogen
D) Oxygen

... Answer is : D) Oxygen

3. Influenza virus is identified by using

A) Plaque formation
B) Haemag gulutinin inhibition test
C) Tissue culture method
D) Embryonated eggs

... Answer is : B) Haemag gulutinin inhibition test

4. Glutamic acid is oxidized by the species except

A) B.canis
B) B. abortus
C) B. suis
D) B. melienasis

... Answer is : A) B.canis

5. Of the following, this is a capsulated organism

A) Escherichia-coli
B) Brucella
C) Bacillus anthracis
D) Coryne bacterium

... Answer is : C) Bacillus anthracis

6. Mc Fadyean’s reaction is used to detect .

A) Corynaebacterium
B) Brucella
C) Bacillus anthracis
D) None of these

... Answer is : C) Bacillus anthracis

7. Coagulase test is used for

A) Bordetella
B) Pneumococcus
C) Salmonella
D) Staphylococcus

... Answer is : D) Staphylococcus

8. Special feature of Retro viruses

A) Reverse transcriptase
B) Boils
C) RNA directed DNA polymerases
D) Both A and C

... Answer is : D) Both A and C

9. AIDS is caused by

A) Bunya virus
B) HTLV – III
C) HTLV – I
D) All of the above

... Answer is : D) All of the above

10. Sero conservation in HIV infection takes place in

A) 12 weeks
B) 9 weeks
C) 6 weeks
D) 3 weeks

... Answer is : B) 9 weeks

11. α-haemolytic streptococci are also known as

A) Str. pyogenes
B) Virulence group
C) Viridans group
D) None of the above

... Answer is : C) Viridans group

12.  Streptolysin ‘S’ is

A) Oxygen stable
B) Thermostable
C) Oxygen unstable
D) None of these

... Answer is : A) Oxygen stable

13. Growth of influenza virus is identified by

A) Hela cells
B) Cytopathic effects
C) Both A and B
D) None of the above

... Answer is : A) Hela cells

14. “Prozone phenomenon” is encountered in

A) Bordetella pertusis
B) A typical mycobacteria
C) Brucella
D) Streptococcus

... Answer is : C) Brucella

15. Anthrax is a

A) Soil borne
B) Wound bone
C) Zoonotic infection
D) Vector borne

... Answer is : C) Zoonotic infection

16. Gasgangarene bacillus is

A) Facultative aerobe
B) Obligate aerobe
C) Facultative anaerobe
D) Obligate anaerobe

... Answer is : D) Obligate anaerobe

17. HIV is belonging to

A) Toga Viridae
B) Paramyxo Viridae
C) Rhabdo Viridae
D) Retro Viridae

... Answer is : D) Retro Viridae

18. AIDS virus is

A) Retro virus
B) Entero virus
C) DNA virus
D) RNA virus

... Answer is : A) Retro virus

19. Which of the following organisms is most commonly associated with AIDS pneumonia ?

A) Mycoplasma
B) Klebsiella
C) Mycobacterium tuberculosis
D) Str. pneumonia

... Answer is : C) Mycobacterium tuberculosis

20. Following is the marker of HIV infection in blood

A) RNA polymerase
B) Reverse transcriptase
C) mRNA polymerase
D) DNA polymerase

... Answer is : B) Reverse transcriptase