MCQ Microbiology (Bacteria and Gram Staining) with answer key Part- 1

 

Microbiology MCQ (Quiz-1)  

Bacteria and Gram Staining

Multiple choice questions with answer key

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

AS PER PCI SYLLABUS

1. Cold like symptoms are caused by which bacteria

  A) Haemophilus streptococcus  
B) Pseudomonas
C) E.coli
D) Haemophilus influenza

... Answer is : D) Haemophilus influenza

2.The infected mad dogs may contain

A) Negri bodies
B) Neisser bodies
C) Niagri bodies
D) Nergi bodies

... Answer is : A) Negri bodies

3. Rancidity in spoiled foods is due to

A) Toxigenic microbes
B) Saccharolytic microbes
C) Lipolytic organisms
D) Proteolytic organisms

... Answer is : c) Lipolytic organisms

4. The functions of plasmid are

A) Cell wall synthesis
B) Protein synthesis
C) DNA replication
D) None of the above

... Answer is : D) None of the above

5. The etiologic agent of botulism is a

A) Endotoxin
B) Enterotoxin
C) Interatoxin
D) Neurotoxin

... Answer is : D) Neurotoxin

6. Protein particles which can infect are called .

A) Prions
B) Nucleoida
C) Virons
D) None of these

... Answer is : A) Prions

7. Endotoxin produced by gramnegative bacteria is present in

A) Inner membrane
B) Theichoic acid
C) Peptidoglycan
D) Lippolysacharide

... Answer is : D) Lippolysacharide

8. The mode of reproduction which occurs in mycoplasma is

A) Binary fusion
B) Binary fission
C) Bursting
D) Budding

... Answer is : B) Binary fission

9. Which one of the following produce typical fried egg appearance colonies on solid media?

A) Bacteroides
B) Mycoplasms
C) Mycobacteria
D) Mycoplasts

... Answer is : B) Mycoplasms

10. A population of cells derived from a single cell are called

A) Clones
B) Protoplasts
C) Sub culture
D) Monclonal cells

... Answer is : A) Clones

11. In Streptococcus fecalis, the conjugation takes place at

A) Flagella
B) Pili
C) Cell membrane
D) Cell wall

... Answer is : D) Cell wall

12. What disease the Nesser will produce?

A) Mumps
B) Measles
C) Polio
D) Rubella

... Answer is : B) Measles

13.The Baterium that is most commonly used in genetic engineering is

A) Proteius
B) Klebsiella
C) Escherichia
D) Serratia

... Answer is : C) Escherichia

14. Mycoplasmas are bacterial cells that

A) Stain well with Gram’s stain
B) Fail to reproduce on artificial media
C) Have a rigid cell wall
D) Are resistant to penicillin

... Answer is : D) Are resistant to penicillin

15. The bacterial cells are at their metabolic peak during

A) Decline
B) Stationary
C) Log
D) Lag phase

... Answer is : C) Log

16. In most of purple bacteria, the light harvesting centers are

A) B 845 & B 875
B) B 850 & Fe-S
C) B 850 & B830
D) B 850 & B 875

... Answer is : D) B 850 & B 875

17. Which one of the following was Gram-negative, chemolithotrophic bacteria?

A) Mycoplasms
B) Spirellum
C) E.coli
D) Siderococcus

... Answer is : C) E.coli

18. Which one of the following is about Herpes viruses?

A) ds DNA, brick shape
B) Icosahedral, with envelope, ds DNA
C) Polyhedral with envelope, ds DNA
D) RNA, helical with envelope

... Answer is : B) Icosahedral, with envelope, ds DNA

19. An organism that is osmophilic and has a specific requirements for sodium chloride resembles

A) Barophile
B) Xerophile
C) Basophile
D) Halophile

... Answer is : A) Barophile

20. Hetrolactic acid bacteria produce

A) Lactic acid + H2O + CO2
B) Lactic acid + alchohol + CO2
C) Lactic acid only
D) Lactic acid + CO2

... Answer is : B) Lactic acid + alchohol + CO2