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Microorganisms Friend And Foe Test - 1

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Microorganisms Friend And Foe Test - 1
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  • Question 1
    1 / -0

    Microbiology is the study of :

    Solution

    Explanation:

    The branch of biology in which we study about microbes or microorganisms, their growth, life cycle and reproduction is called Microbiology.

     

  • Question 2
    1 / -0

    Leeuwenhoek observed in a drop of pond water :

    Solution

    Explanation:

    Leeuwenhoek observed large number of living microorganisms in a drop of water when observed under microscope. This organisms are not visible by naked eyes.

     

     

  • Question 3
    1 / -0

    Pasteur discovered :

    Solution

    Explanation:

    Budding in yeast is a asexual means of reproduction. Fermentation is the anaerobic respiration in which alcohol is produced. Both these process are discovered by Luis Pasteur.

     

  • Question 4
    1 / -0

    _____ are non cellular infectious particles.

    Solution

    Explanation:

    viruses are non-cellular infectious particles. Viruses are placed on the border line of living and non-living. Viruses consist of genetic material and coating of protein surrounding it.

     

     

  • Question 5
    1 / -0

    Iwanowski discovered virus from :

    Solution

    Explanation:

    Iwanowski discovered virus from tobacco leaves and named it Tobacco Mosaic Virus (TMV). This virus contains genetic material surrounded by coat of protein.

     

     

  • Question 6
    1 / -0

    Organism responsible for amoebic dysentery is :

    Solution

    Explanation:

    Amoebic dysentery is a caused by protozoa Entamoeba histolytica . This disease is characterised by loose motion with blood stain.

     

     

  • Question 7
    1 / -0

    The microorganism which helps in fermentation is :

    Solution

    Explanation:

    Fermentation is the process in which yeasts convert sugar into ethanol in absence of oxygen. Fermentation process is used to produce alcoholic beverage.

     

     

  • Question 8
    1 / -0

    Microorganisms are responsible for :

    Solution

    Explanation:

    Microorganisms like bacteria and fungi are responsible for biodegradation of dead and decaying materials into simple substances.

     

     

  • Question 9
    1 / -0

    Which two words are synonyms?

    Solution

    Explanation:

    Microorganism and microbe are two words having same meaning, very small organism that cannot be seen with naked eyes. So, microorganism and microbe are synonyms.

     

     

  • Question 10
    1 / -0

    Germ theory of disease was established by :

    Solution

    Explanation:

    Germ theory of disease was established by Robert Koch. This theory explained that disease are caused by one or more microbes.

     

     

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