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Science — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [2] straightforward initial-understanding
Which three substances are released by the gastric glands in the stomach wall?
Generated by claude-sonnet-4-6 · 2026-06-10 02:56 · grounding rag
Model Answer

The gastric glands in the stomach wall release three substances:

  1. Hydrochloric acid (HCl) — creates an acidic medium that facilitates the action of pepsin and kills harmful bacteria.
  2. Pepsin — a protein-digesting enzyme that breaks down proteins.
  3. Mucus — protects the inner lining of the stomach from the action of the acid.

Source: Life Processes, Section 5.2.4

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Explanation

The question directly tests recall from the passage: "These release hydrochloric acid, a protein digesting enzyme called pepsin, and mucus." Name all three substances and briefly state the role of each — examiners award marks for both identification and function. Do not confuse gastric glands with other glands (salivary, pancreas, etc.).

Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.