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General Knowledge :: Biology

  1. Pickles, candies, jams and breads are preserved by the much of adding

  2. A.

     Preservattives

    B.

     Enzymes

    C.

     Minerals

    D.

     None of the above


  3. Which type of bacteria get their food from dead organic matter?

  4. A.

     Parasitic

    B.

     Autotrophic

    C.

     Saprophytic

    D.

     None of the above


  5. Heterocysts, specialised for nitrogen fixation, occur in certain

  6. A.

     Red brown algae

    B.

     Blue green algae

    C.

     Ferns

    D.

     Mosses


  7. The number pyrenoids in Chlamydomonas is

  8. A.

     1

    B.

     2

    C.

     3

    D.

     4


  9. Commercial agar is obtained from

  10. A.

     Chlorella

    B.

     Gracilaria

    C.

     Parphyro

    D.

     Volvox


  11. Red snow causing alga is

  12. A.

     Chamydomonas nivalis

    B.

     Chlamydomonas reinhardtii

    C.

     Chlamydomonas debaryanum

    D.

     Chalmydomonas media


  13. Cork-screw shaped bacteria are known as

  14. A.

     Cocci

    B.

     Bacilli

    C.

     Spirilla

    D.

     None of the above


  15. Ringworm is a disease caused by

  16. A.

     Fungi

    B.

     Bacteria

    C.

     Virus

    D.

     Flies


  17. Rod shaped bacteria are known as

  18. A.

     Cocci

    B.

     Bacilli

    C.

     Spirilla

    D.

     None of the above


  19. Virus is not regarded as a cell, because

  20. A.

     It is anactive unless it finds a host to multiply

    B.

     Most of the cellular activity is absent

    C.

     The genetic material does not replicate on its own

    D.

     All of the above