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Digestion and Absorption Test - 14

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Digestion and Absorption Test - 14
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  • Question 1
    1 / -0
    The vermiform appendix is situated at the junction of
    Solution
    The vermiform appendix is also referred to as the vermix or the cecal appendix. It is a blind ended tube connected to the cecum, at the junction of large and small intestine. The appendix is usually located in the right lower quadrant of the abdomen, near the right hip bone.
  • Question 2
    1 / -0
    If for some reason our goblet cells are non-functional, this will adversely affect:
    Solution
    Goblet cells are the modified simple epithelial columnar cells. It is found in the lining of organs like intestine and respiratory tract. It secretes mucin (glycoprotein) and maintains the layer of mucous which facilitates passage of material through the intestine. Thus, the correct answer is option A.
  • Question 3
    1 / -0
    The predominant antibody in saliva is
    Solution
    IgA is a type of antibody which ahs two identical light chain and two identical heavy chains. It is produced by the mucosal lining of organs like small intestine. It gives the first line of defence which includes the physical and chemical barriers from the infection e.g., skin, tears, mucus, saliva, WBCs. Thus, the correct answer is option B. 
  • Question 4
    1 / -0
    Vermiform appendix is a part of
    Solution
    The vermiform appendix is also referred to as the cecal appendix. It is a blind ended tube connected to the cecum. The appendix is usually located in the right lower quadrant of the abdomen, near the right hip bone. Its position within the abdomen corresponds to a point on the surface known as McBurney's point.
  • Question 5
    1 / -0
    The type of muscle fibres present in the wall of alimentary canal is:
    Solution
    Smooth muscle fibers or cells are elongated and spindle-shaped. The main function of these muscle fibers is peristalsis. It happens in the tubular viscera. That’s why smooth muscle fibers are present in the wall of the alimentary canal. The autonomous nervous system controls the action of these muscles. Thus, they are involuntary muscles.
    Thus, the correct answer is option A. 
  • Question 6
    1 / -0
    Lymph tissues are present in which part of alimentary canal?
    Solution
    • Peyer's patches are small masses of lymphoid tissue found throughout the wall of the ileum region of the small intestine of mammals.
    • It is also known as lymphoid nodules. It is an important part of the immune system which prevents the growth of antigens like pathogenic bacteria in the intestines.
  • Question 7
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    Water is largely absorbed in__________.
    Solution
    • The small intestine absorbs almost all the nutrients and a large amount of water.
    • The large intestine helps in the absorption of vitamin $$B_{12}$$ and remaining water left from undigested food.
    Thus, the correct answer is option D.
  • Question 8
    1 / -0
    Pancreatic juice contains _______________.
    Solution
    • The pancreas has dual nature exocrine and endocrine, endocrine secretes hormone and exocrine secretes digestive enzymes (pancreatic juice).
    • Pancreatic juice is secreted by the acinar cells of the pancreas which contains a variety of enzymes such as trypsin, chymotrypsin, amylase, lipase, carboxypeptidase.
  • Question 9
    1 / -0
    In pancreas, pancreatic juice and hormones are secreted by
    Solution
    Pancreas have dual nature exocrine and endocrine, endocrine secretes hormone and exocrine secretes digestive enzymes. Acinar cells are the exocrine part of the pancreas which secretes pancreatic juice. Whereas beta cells of islets of Langerhans in the pancreas secrete insulin hormone and glucagon hormone is secreted by the alpha cell of islets of Langerhans. Thus, the correct answer is option B.
  • Question 10
    1 / -0
    The enzymes responsible for the digestion of starch in food of man is present in
    Solution
    Amylase is a protein enzyme that breaks the starch and glycogen into glucose and maltose. Amylase is present in both pancreatic juice and saliva. Salivary amylase (ptyalin) is found in saliva and breaks starch into maltose and dextrin. Pancreatic amylase converts amylose to yield dextrin, maltose, or maltotriose. 
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