Acid secretion is a characteristic of -

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RRB JE CBT I - (Held On: 1 June 2019 Shift 3)
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  1. Buccal cavity
  2. Large intestine
  3. Stomach
  4. Small intestine

Answer (Detailed Solution Below)

Option 3 : Stomach
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The correct answer is Stomach

Key Points

  • Acid secretion is a characteristic feature of the stomach.
  • The stomach secretes hydrochloric acid (HCl), which aids in digestion by creating an acidic environment.
  • This acidic environment helps in breaking down food and activating digestive enzymes like pepsin.
  • It also plays a role in killing harmful bacteria and pathogens ingested with food.

Additional Information

  • The buccal cavity is the mouth and is involved in the initial stages of digestion but does not secrete acid.
  • The large intestine is primarily involved in water absorption and does not secrete acid.
  • The small intestine is responsible for nutrient absorption and secretes alkaline fluids to neutralize stomach acid.
  • The stomach's mucosa contains specialized cells such as parietal cells that produce hydrochloric acid.
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