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Digestion and Absorption Test - 57

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Digestion and Absorption Test - 57
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Marasmus is caused by deficiency of
    Solution
    Nutrient deficiency is the main cause of Marasmus. It occurs in children who don't ingest enough protein, calories, carbohydrates, and other important nutrients. This is usually due to poverty and  scarcity of food. 
    Hence the correct answer is (A)
  • Question 2
    1 / -0
    Middle part of small intestine is
    Solution
    Jejunum is the middle section of the small intestine carries food through rapidly, with wave-like muscle contractions, towards the ileum. Ileum: This last section is the longest part of your small intestine. The ileum is where most of the nutrients from the food are absorbed before emptying into the large intestine.
    So, the correct answer is 'Jejunum'.
  • Question 3
    1 / -0
    First portion of small intestine is called
    Solution
    The beginning portion of the small intestine (the Duodenum) begins at the exit of the stomach (pylorus) and curves around the pancreas to end in the region of the left upper part of the abdominal cavity where it joins the jejunum.
    Hence, the correct answer is (B)
  • Question 4
    1 / -0
    Absence of _________ enzyme in small intestine will severely affect digestion of proteins
  • Question 5
    1 / -0
    The alimentary canal in humans has length of
  • Question 6
    1 / -0
    Ileocaecal valve is present in between
    Solution
    Ileocaecal valve is a sphincter muscle that guards the opening of large intestine. It is found where small intestine(ileum) connects to the large intestine(colon) and controls the flow between these two areas to prevent the bacteria-laden contents of colon from contaminating the small intestine.
  • Question 7
    1 / -0
    In humans, sphincter of oddi is associated with the opening of
    Solution
    The right and left hepatic ducts join to form the hepatic duct the letters join the cystic duct which arises from the gallbladder. The cystic duct and common hepatic duct joints to form bile duct which passes downward posteriorly to join the main pancreatic duct to form the hepatopancreatic ampulla (ampulla of vater). The ampulla opens into the duodenum. The opening is guarded by the sphincter of Oddi.

  • Question 8
    1 / -0
    Which enzyme initiates the digestion of proteins?
    Solution
    Protein digestion first begins in the stomach, where pepsinogen is converted to active form pepsin, by hydrochloric acid. Pepsin breaks proteins down into polypeptides. Thus the correct answer is option B.
  • Question 9
    1 / -0
    Which one is the correct option for labels A, B and C in the given diagram?

    Solution
    The pancreas is a single endodermal flat leaf-like yellowish, heterocrine gland present between ascending and descending limb of the duodenum.
    The serosa is the outermost covering of the human intestine. It is followed by submucosa and mucosa. 
    So, the correct answer is D.
  • Question 10
    1 / -0
    In jejunum, which of the following enzymes is required for the digestion of amino acid containing compounds?
    Solution
    Peptidases are the intestinal proteases, which act on peptides as follows:
    $$Polypeptide\xrightarrow[Alkaline \,medium]{Polypeptidase} Dipeptides$$

    $$Dipeptide\xrightarrow[Dipeptidase]{Alkaline \,medium} Amino acids$$
    Pepsin, trypsin, and chymotrypsin, etc are aminopeptidases, which act upon amino groups of the peptide bond. 
    Thus the correct answer is option D.
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