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Question

Which of the following belongs to the class of pepsin and trypsin?

A
Rennin
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B
Sucrose
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C
Thyroxin
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D
Secretin
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Solution

The correct option is A Rennin
  • Pepsin, rennin and trypsin are digestive enzymes.
  • Pepsin and renin are enzymes secreted by the gastric pits in the stomach. They are the active forms of pepsinogen and prorenin respectively, which activate when they come into contact with the hydrochloric acid in the stomach.
  • Trypsin is the active form of trypsinogen, secreted by the pancreas into the duodenum, which is activated by enterokinase secreted by the cells of the small intestine. Hence, Rennin belongs to the class of pepsin and trypsin.
So, the correct answer is 'rennin'.

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