Which of the following is a protein digesting enzyme produced in the stomach?

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RRB Group D Previous Year Paper (Held on: 26 Aug 2022 Shift 2)
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  1. Maltase
  2. HCI
  3. Pepsin
  4. Enterokinase

Answer (Detailed Solution Below)

Option 3 : Pepsin
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Detailed Solution

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The correct answer is Pepsin

Key Points

  • Pepsin is a protein-digesting enzyme produced in the stomach.
  • It is secreted by the gastric glands in an inactive form called pepsinogen, which is then activated by the acidic environment of the stomach.
  • The primary function of pepsin is to break down proteins into smaller peptides, which can then be further digested in the small intestine.
  • This enzyme is crucial for the digestive process, allowing for the efficient absorption of nutrients.

Additional Information

  • Maltase is an enzyme that breaks down maltose into glucose, and is not involved in protein digestion.
  • HCl (Hydrochloric Acid) is produced in the stomach and creates an acidic environment but is not an enzyme.
  • Enterokinase is an enzyme produced in the small intestine that activates trypsinogen to trypsin, aiding in protein digestion in the small intestine.
  • Pepsin works best in the highly acidic environment of the stomach, which is maintained by the secretion of hydrochloric acid.
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