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Respiration in Organisms Test - 8

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Respiration in Organisms Test - 8
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  • Question 1
    1 / -0
    Roots obtain oxygen from ___________.
    Solution
    Like all other living cells of the plants, the root cells also need oxygen to generate energy. Roots take up air from the air spaces present between the soil particles.
    So, the correct answer is option D.
  • Question 2
    1 / -0
    The organism which breathes only through its moist skin is:
    Solution
    Earthworms and frogs have moist skin which is permeable to gases. Earthworms breathe only through their moist skin but frogs breathe through their skin as well as lungs. Fish breathe through gills and kingfisher has lungs as a respiratory organ.
    Therefore, the correct answer is option C.
  • Question 3
    1 / -0
    Which of the following is not associated with the process of respiration?
    Solution
    The respiratory system consists of the nose, pharynx, larynx, trachea, bronchi and lungs. When you breathe in, air enters your body through your nose or mouth. From there, it travels down your throat through the larynx (or voicebox) and into the trachea (or windpipe) before entering your lungs.
    Bladder/Urinary bladder is part of the excretory system. Hence, the part not associated with the process of respiration is bladder.
    So, the correct option is 'bladder'.
  • Question 4
    1 / -0
    Which one of the following organisms is able to breathe by both skin and lungs?
    Solution
    Frogs can respire through the lungs and through the moist skin.
    Earthworms respire through the skin only.
    Fishes respire through gills.
    Mammals respire through the lungs.
    Hence the correct option is B.
  • Question 5
    1 / -0
    Which tube of the following is used both by the digestive and respiratory system? 
  • Question 6
    1 / -0
    Which one of the following organ of plants responsible for respire?
  • Question 7
    1 / -0
    In cockroaches, respiration takes place through:
    Solution
    Respiration in cockroaches takes place with the help of the tracheae and spiracles. Air enters the insect's body through the spiracle and enters the trachea. The tracheal system in cockroaches is a network of tubes that transport gases to the different parts of the body. 
    Therefore, the correct answer is option B.
  • Question 8
    1 / -0
    Gills in fish are projections of
    Solution
    Gills in fish help them to use oxygen dissolved in water. Gills are projections of the skin.  Gills are well supplied with blood vessels for exchange of gases. Thus, option A is correct.
  • Question 9
    1 / -0
    Fish absorb oxygen through
    Solution
    Most fish exchange gases using gills on either side of the pharynx (throat).  Fish exchange gases by pulling oxygen-rich water through their mouths and pumping it over their gills. Fish do not have lungs and do not absorb oxygen through mouth or tail. 
    Therefore, the correct answer is option A.
  • Question 10
    1 / -0
    Which of the following animals breathe through their skin and lungs?
    Solution
    Earthworms breathe through their skins. The skin of an earthworm feels moist and slimy on touching. Gases can easily pass through them. 
    Though frogs have a pair of lungs like human beings, they can also breathe through their skin, which is moist and slippery. 
    Fish breathe with the help of gills.
    Thus, option B is correct.
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