Microbiology MCQ (Quiz-9)  

Bacteria and Gram Staining

Multiple choice questions with answer key

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

AS PER PCI SYLLABUS






1. During staining for Electron Microscopy, the method which improves contrast of specimen is
      A) Negative staining


... Answer is : A) Negative staining


2. Archaeo bacteria are known as




... Answer is : D) Red extreme halophiles

3. Sulphur oxidizing bacteria is





... Answer is : A) Thiobacillus

4. The group of bacteria which deopends on organic sources in nature for their energy requirements. They are said to be




... Answer is : B) Heterotrophes


5. Symbionts are




... Answer is : B) The groups participating in symbiotic association

6. The enzymes responsible for decomposition is .




... Answer is : A) Proteolytic

7. Phycobiont is




... Answer is : C) The algal part in Lichens

8. The total no. of genes in the group of same individuals is





... Answer is : A) Gene pool


9. Capsulated forms of bacteria are





... Answer is : D) Useful

10. Phagocytes are




... Answer is : D) All of these

11. The inorganic forms of nitrogen, which are accepted by bacteria are




... Answer is : D) All of these


12. Nitrite is converted into nitrate by the bacteria




... Answer is : D) Nitrobacter

13. Bacillus Schlegelli is




... Answer is : D) Hydrogen – Oxydising bacteria


14. Majority of bacteria are




... Answer is : C) Parasites

15. The best example for symbiotic associa-tion is




... Answer is : C) Lichens


16. Urea is decomposed by the species




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

17. Parasitic form must contain




... Answer is : D) Capsules


18. Transformation was observed mainly in




... Answer is : A) Temperate phages

19. The bacterial cells participating in conjugation are




... Answer is : D) Conjugants

20. The microorganism engulfed by phagocyte resides in a vacuole is known as




... Answer is : C) Phagosome