WBCS.LIVE practice question

Which acid is naturally secreted in the human stomach to assist in the digestion of food?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Sulfuric acid
  2. Hydrochloric acid
  3. Nitric acid
  4. Citric acid

Correct answer and explanation

Correct answer: Hydrochloric acid

Explanation: āœ… Correct Answer: B) Hydrochloric acid šŸ“š Explanation: Hydrochloric acid (HCl) is produced by the parietal cells in the lining of the stomach. It serves two primary functions: it creates an acidic environment necessary for the enzyme pepsin to break down proteins, and it kills harmful bacteria that may enter with food. The stomach lining is protected from this strong acid by a thick layer of mucus.