G.K. Questions - Microorganisms

1. Of all micro-organisms, the most adaptable and versatile are -

  1. Viruses
  2. Bacteria
  3. Algae
  4. Fungi

2. Mycology is the study of –

  1. Bacteria
  2. Fungi
  3. Insects
  4. Parasites

3. The shape of coccus bacteria is generally –

  1. Spherical
  2. Rod like
  3. Comma shaped
  4. Spiral

4. Viruses that infect bacteria are called –

  1. Methanogens
  2. Pathogens
  3. Lichens
  4. Bacteriophages

5. Baltimore system is used to classify –

  1. Viruses
  2. Bacteria
  3. Fungi
  4. Protozoa

6. Spirogyra is a type of

  1. Bacteria
  2. Virus
  3. Algae
  4. Fungi

7. A lichen is a composite organism consisting of –

  1. Algae & Bacteria
  2. Bacteria & Virus
  3. Virus &Fungi
  4. Algae & Fungi

8. Which of these is an autotroph?

  1. Cuscuta
  2. Algae
  3. Bacteria
  4. Mushroom

9. Rhizobium, the organism found in root nodules of legumes are –

  1. Bacteria
  2. Fungi
  3. Lichen
  4. Algae


10. Organisms which take in nutrients from dead and decaying matter are called –

  1. Autotrophs
  2. Heterotrophs
  3. Saprotrophs
  4. Autoheterotrophs

11. The shape of Bacillus bacteria is generally –

  1. Spherical
  2. Comma shaped
  3. Rod like
  4. Spiral

12. Who discovered the process of fermentation?

  1. Edward Jenner
  2. Louis Pasteur
  3. Jonas Salk
  4. William Harvey

13. What is shape of an amoeba?

  1. Spherical
  2. Elongated
  3. Spiral
  4. No definite shape

14. Rhizobium bacteria are present in the _____ of leguminous plants.

  1. Roots
  2. Leaves
  3. Fruits
  4. Flowers

15. Which of these is a saprotroph?

  1. Algae
  2. Pitcher plant
  3. Fungi
  4. Cuscuta


16. Prokaryotes do not have –

  1. Cytoplasm
  2. Ribosome
  3. Nuclear membrane
  4. Chromosomes

17. Which of the following does not have the capacity to reproduce outside the host cell?

  1. Bacteria
  2. Fungi
  3. Algae
  4. Virus

18. What type of microorganism is yeast which is used in many food preparations?

  1. Bacteria
  2. Fungi
  3. Algae
  4. Virus

19. Pencillium from which an antibiotic is obtained is a type of –

  1. Bacteria
  2. Virus
  3. Algae
  4. Fungus

20. The sole members of kingdom Monera are –

  1. Mushrooms
  2. Virus
  3. Algae
  4. Bacteria

21. Litmus used as an indicator for acids and bases is extracted from –

  1. Lichens
  2. Virus
  3. Plants
  4. Bacteria

22. To which one of the following types of organism do mushrooms belong?

  1. Algae
  2. Ferns
  3. Fungi
  4. Lichens