World of Microbes Model Question Paper

9th Standard

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Science

Time : 02:00:00 Hrs
Total Marks : 50
    5 x 1 = 5
  1. Mycology is the branch of biology that deals with the study of

    (a)

    algae

    (b)

    virus

    (c)

    bacteria

    (d)

    fungi

  2. Mosquito borne viral diseases are

    (a)

    malaria and yellow fever

    (b)

    dengue and chikungunya

    (c)

    filariasis and typhus

    (d)

    kala azar and diptheria

  3. The primary organ infected during tuberculosis is

    (a)

    bone marrow

    (b)

    intestine

    (c)

    spleen

    (d)

    lungs

  4. Poliomyelitis virus which causes infantile paralysis enters the body through

    (a)

    skin

    (b)

    mouth and nose

    (c)

    ears

    (d)

    eye

  5. Which of the following micro organism helps in fermentation?

    (a)

    Yeast

    (b)

    Mould

    (c)

    Mushroom

    (d)

    Rhizopus

  6. 5 x 1 = 5
  7. The hyphae with branches form a complex network called ______________.

    ()

    Mycelium

  8. Baker’s yeast is ______________.

    ()

    Saccharomyces cerevisiae

  9. H1N1 virus causes ______________.

    ()

    Swine flu

  10. Cholera is caused by ______________ and malaria is caused by ______________.

    ()

    Vibrio cholerae, Plasmodium falciparum

  11. Fungi used in bakeries are ___________.

    ()

    yeasts

  12. 5 x 1 = 5
  13. Glycogen and oil globules are stored form of food in fungi.

    (a) True
    (b) False
  14. Rhizobium, associated with root nodules of leguminous plants fixes atmospheric nitrogen.

    (a) True
    (b) False
  15. Non- infectious diseases remain confined to the person who develops the disease and do not spread to others.

    (a) True
    (b) False
  16. The antibiotic penicillin is obtained from fungi.

    (a) True
    (b) False
  17. Goitre is the swelling of neck region due to the enlargement of thyroid gland

    (a) True
    (b) False
  18. 3 x 2 = 6
  19. Define the Bacteriophages

  20. Define the Vaccines

  21. Define the Prions

  22. 3 x 3 = 9
  23. Distinguish between Virion and Viroid.

  24. Name the vector of the malarial parasite. Mention the species of malarial parasite which cause malignant and fatal malaria.

  25. What is triple antigen? Mention the disease which can be prevented by using the antigen.

  26. 4 x 5 = 20
  27. Give an account of classification of bacteria based on the shape.

  28. Explain the various types of viruses with examples.

  29. Explain the classification of diseases based on their occurance.

  30. List out the measures to be taken to prevent vector borne diseases transmitted through mosquitoes.

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