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  •  Read the following statements  I.    Stomach acts as a temporary storage organ to reduce the frequency of eating II.

 Read the following statements

 I.    Stomach acts as a temporary storage organ to reduce the frequency of eating

II.    Gastric glands secrete an intrinsic factor which is essential for absorption of vitamin         B12 in the jejunum region of small intestine

III.    Pepsin secreted by cells of duodenum is a proteolytic enzyme 

Choose the option with all correct statements

 

Option: 1

I and III

 


Option: 2

II and III

 


Option: 3

II only

 


Option: 4

I only 

 


Answers (1)

best_answer
 

Function of Stomach -

  • It acts as a temporary storage organ. Because of this, the frequency of eating is reduced.
  • Digestive function is because of pepsin enzyme. It is a proteolytic enzyme.
  • The movements of the stomach convert solid food into a fluid paste called chyme and deliver this in small quantities to the duodenum for proper digestion in the small intestine.
  • A protective function is because of the high acidic medium due to the presence of HCl, many of the micro­organisms die. Thereby it protects the GI tract from getting invaded by the microorganisms.
  • The hematopoietic function is because of the intrinsic factor which is secreted by gastric glands. Intrinsic factor is essential for the absorption of vitamin B12 in the ileum region.
  • The absorptive function is also one of the functions of the stomach. Some amount of water and alcohol is absorbed in the stomach region.

Cells of gastric glands of stomach secretes intrinsic factor which is essential for absorption of vitamin B12 in the ileum region. Hence, the correct answer is option d.

Posted by

jitender.kumar

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