Answer: Protects the stomach lining from acid.
- A Digests proteins
- B Emulsifies fats
- C Absorbs water
- D Protects the stomach lining from acid
Correct answer: D. Protects the stomach lining from acid
Explanation: Gastric mucus, together with bicarbonates, forms a protective layer that prevents hydrochloric acid and pepsin from damaging the stomach wall.
The human digestive system. Image: LadyofHats (Mariana Ruiz), Public Domain, via Wikimedia Commons.
Concept context
The digestive tract, digestive enzymes, hormonal control of digestion, and liver function. High NEET weightage.