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4th Class Science Food and Health Question Bank Food and Digestion

  • question_answer
    The given figure shows human digestive system with some parts labelled as P, Q. R and S. Which of the following labelled parts is correctly matched with its function?

    A)  Q - Food is mixed with digestive juices

    B)      P - Digestion starts here

    C)      R - Most of the water is absorbed here                  

    D)      S - Digestion of all food components takes place here

    Correct Answer: B

    Solution :

    :'P' is mouth where digestion of food starts with the help of saliva. 'Q' is oesophagus which acts as a passage for conduction of food from the mouth to stomach. No digestion takes place here. 'R' is stomach where food is mixed with digestive juices. Digestion of all food components takes place in small intestine. In large intestine, 'S', water is absorbed from the undigested food.


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