Home / General Knowledge / Biology :: section-10

General Knowledge :: Biology

  1. Algae and fungi are collectively known as

  2. A.

     Thallophytes

    B.

     Pteridophytes

    C.

     Bryophytes

    D.

     Spermatophytes


  3. Which of the following is true about bryophytes?

  4. A.

     They are thalloid

    B.

     They contain chloroplast

    C.

     They posses archegonia

    D.

     All of these


  5. In birds, some of the vertebrae are fused to form

  6. A.

     Keel

    B.

     Furcula

    C.

     Syncytium

    D.

     Synsacrum


  7. They play a central role in the making of dairy products such as butter, cheese, yogurt etc.

  8. A.

     Viruses

    B.

     Fungi

    C.

     Bacteria

    D.

     Algae


  9. There are certain bacteria which can fix atmospheric gas named

  10. A.

     Oxygen

    B.

     Nitrogen

    C.

     Hydrogen

    D.

     Carbon dioxide


  11. The bacterium which reduces the fertility of soil is

  12. A.

     Nitrosomonas sp

    B.

     Azotobacter sp

    C.

     Nitrobacter sp

    D.

     Bacillus dentificans


  13. They are used in the retting of flax and hemp.

  14. A.

     Viruses

    B.

     Bacteria

    C.

     Fungi

    D.

     Mosses


  15. Which of the following bacteria is responsible for the formation of curd?

  16. A.

     Lycopodium

    B.

     Yeast

    C.

     Lacto-bacillus

    D.

     Fungus


  17. Yeast used in making bread is a

  18. A.

     Fungus

    B.

     Bacteria

    C.

     Seed

    D.

     Plant


  19. Nitrogen fixation process in the soil is done by

  20. A.

     Virus

    B.

     Bacteria

    C.

     Fungi

    D.

     Protoza