7th Class Science Transportation in Animals and Plants Question Bank Transportation in Plants and Animals

  • question_answer
    Tanmay took a potted, well watered plant and set-up an experiment as shown in figure.
     
    Then, he put it in the sunlight for few hours. Which of the following options is correct regarding his observation?
       

    A) Water droplets are visible in polythene X as transpiration takes place through leaves.

    B) Water droplets are visible in polythene Y as transpiration takes place through stems.

    C) Water droplets are visible in polythene X as photosynthesis occurs in leaves.

    D) Water droplets are visible in polythene Vas photosynthesis occurs in stem.

    Correct Answer: A

    Solution :

    Most of the transpiration takes place through leaves which results in loss of water in the form of water vapours from the plants through stomata. Since in polythene X leaves are covered, water vapours released in the atmosphere will get collect in the polythene, and are thus, visible in the form of water drops. Polythene Y has no leaves inside it, therefore, no water droplets are visible in it.

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