Answer: Secrete bicarbonate juice to neutralize stomach acid.
- A Release zymogen-rich enzyme juice to digest proteins and fats
- B Secrete bicarbonate juice to neutralize stomach acid
- C Produce more insulin from pancreatic beta cells
- D Increase peristaltic contractions along the duodenal wall
Correct answer: B. Secrete bicarbonate juice to neutralize stomach acid
Explanation: Secretin: released by S cells in duodenum when acid enters. Stimulates pancreas to secrete bicarbonate (NaHCO3) to neutralize HCl.
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.