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प्रश्न
How is the intestinal mucosa protected from the acidic food entering from stomach?
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उत्तर
The mucus and bicarbonates present in gastric juice play an important role in lubrication and protection of the mucosal epithelium from excoriation by highly concentrated hydrochloric acid.
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संबंधित प्रश्न
Choose the correct answer among the following:
Gastric juice contains
(i) pepsin, lipase and rennin
(ii) trypsin lipase and rennin
(iii) trypsin, pepsin and lipase
(iv) trypsin, pepsin and renin
Choose the correct answer among the following:
Succus entericus is the name given to
(i) a junction between ileum and large intestine
(ii) intestinal juice
(iii) swelling in the gut
(iv) appendix
How does pepsinogen change into its active form?
Describe the process of digestion of protein in stomach.
Bile juice contains no digestive enzymes, yet it is important for digestion. Why?
What would happen if HCl were not secreted in the stomach?
Mark the right statement among the following
Trypsinogen is an inactive enzyme of pancreatic juice. An enzyme, enterokinase, activates it. Which tissue/ cells secrete this enzyme?/ How is it activated?
Define digestion in one sentence.
Correct the following statement by deleting one of entries (given in bold).
Goblet cells are located in the intestinal mucosal epithelium and secrete chymotrypsin/mucus.
Correct the following statement by deleting one of entries (given in bold).
Fats are broken down into di- and monoglycerides with the help of amylase/ lipases.
Correct the following statement by deleting one of entries (given in bold).
Saliva contains enzymes that digest starch/protein.
Describe the enzymatic action on fats in the duodenum.
