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General Knowledge :: Biology

  1. Who discovered the insecticidal properties of DDT?

  2. A.

     Othmanzedicer

    B.

     R.H. Painter

    C.

     Paul Muller

    D.

     Rachel Carson

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  3. There is no bacteria activity in which of the following process?

  4. A.

     Sewage disposal

    B.

     Tanning of leather

    C.

     Ripening of cheese

    D.

     Preparation of sillage

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  5. ________ reproduces by binary fission.

  6. A.

     Amoeba

    B.

     Liverfiuke

    C.

     Plasmodium

    D.

     Planaria

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  7. The DNA of the bacterium is found present in a distinct nuclear region called

  8. A.

     Nucleolus

    B.

     Centrosome

    C.

     Nucleoid

    D.

     Nucleus

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  9. In autotrophic bacteria, where is chlorophyll located?

  10. A.

     In the nucleoid

    B.

     In the infolded plasma membrane

    C.

     In the ribosomes

    D.

     In chloroplast membranes

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  11. Bacteria were first discovered by

  12. A.

     Robert Koch

    B.

     Robert Hooke

    C.

     Louis Pasteur

    D.

     A.V.Leeuwenhoek

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  13. Among the many substances manufactured commercially by means of ________ are acetic acid, acetone, butanol, lactic acid and several vitamins.

  14. A.

     Viruses

    B.

     Bacteria

    C.

     Fungi

    D.

     Yeast

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  15. In fungi asexual reproduction occurs mostly by

  16. A.

     Fragmentation

    B.

     Budding

    C.

     Spore formation

    D.

     All of these

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  17. Amoeba belongs to the phylum

  18. A.

     Protozoa

    B.

     Annelida

    C.

     Porifera

    D.

     Platyhelminthes

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  19. Dried milk dried meat are examples of preservation by

  20. A.

     Pasteurization

    B.

     Dehydration

    C.

     Strerilization

    D.

     None of the above

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