Life Processes

  • Question 77
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    Draw diagram to show the position of large intestine,  small intestine, appendix, rectum and anus.

    Solution

    Showing position of large intestine, small intestine and rectum
    Question 78
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    What are the functions of pancreas in the human body?

    Solution
    Functions of pancreas: Pancreas secretes pancreatic juice. The pancreatic juice contains digestive enzymes. The Trypsin enzyme is used for digesting proteins, pancreatic amylase for break down of starch and pancreatic lipase to digest fats.
    Pancreas also secrete hormones, known as insulin and glucagon which maintain the sugar levels of the body.
    Question 79
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    What are functions of hydrochloric acid secreted in the stomach?

    Solution

    Function of hydrochloric acid are
    (i) It makes the acidic medium which is necessary for the action of gastric enzymes like pepsin.
    (ii) It kills most of the harmful bacteria present in the food.

    Question 80
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    What is the name for food pipe?

    Solution

    Oesophagus.

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