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

  • question_answer
    Which enzymes are likely to act on the baked potatoes eaten by a man, starting from the mouth as they move down the alimentary canal?                    

    A) Salivary amylase \[\to \] pancreatic amy- lase \[\to \]Disaccharidases

    B) Pancreatic amylase \[\to \] salivary amylase \[\to \]Lipase

    C) Salivary maltase \[\to \] Lipase \[\to \] Trypsinogen

    D) Salivary maltase \[\to \] pancreatic amylase Trypsin

    Correct Answer: A

    Solution :

    Baked potatoes consist of starch which is a polysaccharide. In oral cavity, the food is mixed with saliva. The saliva contains an enzyme called salivary amylase, which converts some of the starch into simpler sugar. Pancreatic juice (present in small intestine) contains pancreatic amylase which converts remaining starch into simpler sugar (disaccharide etc.). Further, disaccharidases (present in intestinal juice of small intestine) breakdown disaccharides into simplest sugar.


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