Micro Organisms One Mark Questions

8th Standard EM

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Science

Time : 00:30:00 Hrs
Total Marks : 20
    5 x 1 = 5
  1. Micro organisms are measured in ______.

    (a)

    cm

    (b)

    mm

    (c)

    micron

    (d)

    meter

  2. _______ shows both living and nonliving characteristics.

    (a)

    Protozoa

    (b)

    virus

    (c)

    bacteria

    (d)

    Fungi

  3. ______ is a prokaryotic micro organisms.

    (a)

    Virus

    (b)

    algae

    (c)

    fungi

    (d)

    bacteria

  4. Plasmodium belongs to _________ type of protozoan.

    (a)

    Ciliates

    (b)

    Flagellate

    (c)

    Pseudopods

    (d)

    sporozoans

  5. __________ is an acid - loving bacteria

    (a)

    Lactobacillus acidophilus

    (b)

    Pseudomonas

    (c)

    Xanthomonas

    (d)

    Vibrio cholera

  6. 5 x 1 = 5
  7. The infact virus particle found outside the host cell is _______.

    ()

    Virion

  8. Micro organism can be seen with the help of a _______.

    ()

    Microscope

  9. Bacteria, which have a flagellum at one end is classified as _______.

    ()

    Monotrichous

  10. __________ Vaccine is used to cure foot and mouth disease

    ()

    FMD Vaccine

  11. Causative organism for rabies is ___________

    ()

    Rhabdo virus

  12. 5 x 1 = 5
  13. Diseases causing micro organisms are called pathogens.

    (a) True
    (b) False
  14. Female anopheles mosquito is a carrier of dengue virus.

    (a) True
    (b) False
  15. Chicken pox is a communicable disease.

    (a) True
    (b) False
  16. Citrus canker is transmitted by insects.

    (a) True
    (b) False
  17. Yeast is used in the large scale production of alcohol.

    (a) True
    (b) False
  18. 5 x 1 = 5
  19. Nitrogen fixing bacteria

  20. (1)

    Ryizobium

  21. Tuberculosis

  22. (2)

    Helicobacer

  23. Atrichous

  24. (3)

    Coryne bacterium

  25. Spirilla

  26. (4)

    Bacteria

  27. Nitrogen fixation

  28. (5)

    Cyanobacteria

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