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Life Processes Test - 5

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Life Processes Test - 5
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Weekly Quiz Competition
  • Question 1
    1 / -0

    To remove chlorophyll, the leaf is boiled in:

    Solution

    Plant leaves are boiled in alcohol for bleaching out the chlorophyll.

     

  • Question 2
    1 / -0

    Lymph differs from the blood as it has

    Solution

    Lymph is a pale fluid made up of only WBCs and not RBCs.

     

  • Question 3
    1 / -0

    Xylem in plants is responsible for transport of

    Solution

    Xylem in plants is responsible for the transport of water and minerals.

     

  • Question 4
    1 / -0

    Which organ pumps blood throughout the human body?

    Solution

    The heart pumps blood throughout the human body parts.

     

  • Question 5
    1 / -0

    The air passing through the nostrils in humans is filtered by:

    Solution

    The air passing through the nostrils is filtered by the fine hairs and mucus present in nostrils.

     

  • Question 6
    1 / -0

    Suppose you are performing the starch iodine-test to study photosynthesis. What will be the correct sequence of the following steps: , 

    i) Boiling leaf in alcohol. 

    ii) Dipping leaf in iodine solution 

    iii) Boiling leaf in water 

    iv) Rinsing leaf with water

    Solution

    First we boil the leaf  in water as it will kill all the live cells. Then we boil it in ethanol to bleach out all the chlorophyll. Next we rinse the leaf with water to remove any residual ethanol. Finally, we treat it with iodine solution.

     

  • Question 7
    1 / -0

    The loss of water from the aerial parts of the plant during daytime is called

    Solution

    The loss of water from the aerial parts of the plant during daytime is called transpiration.

     

  • Question 8
    1 / -0

    In animals, carbohydrates which are not used immediately are stored in the body as:

    Solution

    Excess carbohydrate in animals is stored in the form of glycogen which serves as an energy reserve.

     

  • Question 9
    1 / -0

    Which of the following is a bile pigment?

    Solution

    Bile contains pigments, bilirubin and biliverdin produced by the breakdown of dead and worn out red blood cells.

     

  • Question 10
    1 / -0

    Which of the following have the thickest wall?

    Solution

    Arteries have a thicker wall as compared to arteriole and veins.

     

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