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Human digestive system

Quiz by sheeba charles

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14 questions
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  • Q1
    The structure which prevents entry of food into the windpipe during swallowing in mammals is:
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  • Q2
    Glottis is a structure which:
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    Allows air to enter in trachea.
    Produces sound as air is forced through it.
    Prevents entry of food into windpipe during swallowing food.
    Allows food to pass into oesophagus.
  • Q3
    Trypsinogen is produced by:
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  • Q4
    When gall bladder of a man is removed:
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    Fat digestion is not possible.
    Acidity continues in the duodenum.
    All of the above
    The effect of pancreatic juice on food is impaired.
  • Q5
    When a piece of bread is chewed, it tastes sweet because:
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    The taste buds are stimulated by chewing.
    It does not taste sweet.
    Saliva converts starch into maltose.
    The sugar contents are drawn out.
  • Q6
    Functional units of absorption of digested food are:
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    Crypts of Lieberkuhn
    Peyer's patches
    Brunner's gland
  • Q7
    In which part of gut, proteins ultimately degraded to amino acids?
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    Small intestine
  • Q8
    Pancreatic juice takes part in digestion of:
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    Proteins only
    Proteins and fats
    Proteins, fats and carbohydrates
    Proteins and carbohydrates
  • Q9
    Small intestine is distinguishable into 3 parts, a 'U' shaped____, a long coiled middle portion ____ and a highly coiled ____.
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    Caecum, duodenum, ileum
    Jejunum, duodenum, ileum
    Ileum, jejunum, duodenum
    Duodenum, jejunum, ileum
  • Q10
    How do nutrients, absorbed by the small intestine, travel to the individual cells of the human body?
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    The body cells send nerve impulses indicating a lack of nutrients to the small intestine, and the small intestine sends the nutrients back to the cells.
    The nutrients are absorbed from the small intestine into the blood and move through the circulatory system to the body cells.
    The small intestine forces the nutrients into the kidneys, where the nutrients are then dissolved in fluids used by the body cells.
    The nutrients move from the small intestine directly to the liver and then move through the lymphatic system to the body cells.
  • Q11
    If the bile-pancreatic duct is blocked then which of the following will not be affected?
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    Digestion of proteins
    Emulsification of fats
    Digestion of starch
    Level of blood glucose
  • Q12
    During prolonged fasting,
    First fats are used up, followed by carbohydrates from the liver and muscles and proteins in the end.
    First lipids, followed by proteins and carbohydrates towards the end.
    First carbohydrates are used up, followed by fat and proteins towards the end.
    None of the above
  • Q13
    Pancreatic cancer is an especially dangerous disease in people because the pancreas is
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    The site of synthesis for all of the essential amino acids.
    An organ in which many different kinds of digestive enzymes are manufacture.
    The organ that produces and stores bile.
    One of the organs through which food must pass on its way to the colon.
  • Q14
    Colostomy is the removal of large parts of the colon. The principal effect of a colostomy is:
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    Kwashiorkor and marasmus
    Increased loss of bile pigments

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