What problem can occur if mucus is deficient in the stomach?
Answer and explanation
Correct answer: Acid can damage the stomach wall
The governing concept is protection during digestion. The stomach releases hydrochloric acid and digestive enzymes, but its inner lining is protected by a mucus layer. If mucus is deficient, acid can directly irritate and erode the lining, possibly causing inflammation or ulcers. Therefore option A is correct. The other options concern blood oxygen, bile production, or plant transport tissues and are unrelated to mucus protection in the stomach.
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What is the correct answer to this question?
Acid can damage the stomach wall
Why is this the correct answer?
The governing concept is protection during digestion. The stomach releases hydrochloric acid and digestive enzymes, but its inner lining is protected by a mucus layer. If mucus is deficient, acid can directly irritate and erode the lining, possibly causing inflammation or ulcers. Therefore option A is correct. The other options concern blood oxygen, bile production, or plant transport tissues and are unrelated to mucus protection in the stomach.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.
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