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Life Processes Test - 4

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Life Processes Test - 4
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  • Question 1
    1 / -0

    The stomata opens when the guard cells are:

    Solution

    Guard cells surround the stomata and when more water enters in the guard cells it becomes turgid; this causes the opening of stomata.

     

  • Question 2
    1 / -0

    What are the end products of respiration in yeast?

    Solution

    The end products of respiration in yeast are CO2, C2H5OH and energy. 

     

  • Question 3
    1 / -0

    The build-up of lactic acid in muscles can lead to:

    Solution

    The build–up of lactic acid in muscles can lead to cramps.

     

  • Question 4
    1 / -0

    The components of blood involved in the transport of O2 and CO2 are:

    Solution

    O2 and CO2 are transported through RBCs and blood plasma in the blood.

     

  • Question 5
    1 / -0

    Anaerobic respiration that takes place in yeast is also called:

    Solution

    Anaerobic respiration that takes place in yeast is also called fermentation.

     

  • Question 6
    1 / -0

    During digestion, fats are broken down to:

    Solution

    Fats are broken down in the small intestine, by the action of bile salts, into small globules, later they are broken down further by the enzyme lipase into free fatty acids and glycerol.

     

  • Question 7
    1 / -0

    The ribs move up and outwards during:

    Solution

    The ribs move up and outwards during inhalation as the lungs inflate.

     

  • Question 8
    1 / -0

    Which structure is used for gaseous exchange and loss of water in plants?

    Solution

    Stomata present in plant leaves is primarily used for gaseous exchange. However, a large amount of water is also lost from the stomata.

     

  • Question 9
    1 / -0

    The stomatal pore opens when:

    Solution

    The stomatal pore opens when the guard cells surrounding it absorb water and swell up.

     

  • Question 10
    1 / -0

    The process involved in the uptake of minerals from soil by the root hair is:

    Solution

    The root cells  take up mineral ions from the soil by using energy in the form of ATP.

     

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