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Microorganisms Friend And Foe Test - 3

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Microorganisms Friend And Foe Test - 3
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Weekly Quiz Competition
  • Question 1
    1 / -0

    What will happen if we do not preserve food properly?

    Solution

    If not preserved properly, food will become spoilt due to growth of microbes which produce toxic substances and make food unfit for consumption.

     

  • Question 2
    1 / -0

    What is the common mode of transmission seen in cholera, hepatitis and typhoid?

    Solution

    Water-borne diseases are caused by water that has been contaminated by human or animal wastes and includes diseases such as cholera, typhoid and hepatitis A and E.

     

  • Question 3
    1 / -0

    Pathogens are microorganisms which

    Solution

    Infectious diseases are caused by pathogens, which include bacteria, fungi, protozoa, worms, viruses

     

  • Question 4
    1 / -0

    Which is not a viral disease in plants?

    Solution

    Rust of wheat is caused by Puccinia, a fungus.

     

  • Question 5
    1 / -0

    Citrus canker, wilt of Potato and blight in Rice are _______ diseases.

    Solution

    Citrus canker, wilt of Potato and blight in Rice are caused by bacteria.

     

  • Question 6
    1 / -0

    What is the term for the activity occurring when yeast is grown in a sugar solution?

    Solution

    When yeast is grown in a sugar solution, the sugar gets converted into alcohol by yeast in a process known as fermentation.

     

  • Question 7
    1 / -0

    Which gas is released during fermentation process?

    Solution

    Carbon dioxide is released during the process of fermentation

     

  • Question 8
    1 / -0

    Which of the following serves as an indirect source of nitrogen in the soil?

    Solution

    Dead plants and animals and their organic waste serve as a source of nutrition for microbes which decompose these materials and release nitrogenous compounds into the soil.

     

  • Question 9
    1 / -0

    Atmospheric nitrogen does not get fixed through:

    Solution

    Plants cannot fix atmospheric nitrogen directly. Plants get their nitrogen indirectly from the air via microorganisms in the soil and in certain plant roots.

     

  • Question 10
    1 / -0

    What is the mode of transmission of the plant disease, citrus canker?

    Solution

    The bacterium causing citrus canker gets transmitted through the air.

     

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