Question 11

Both digestion and absorption occur in the small intestine.

Digestion and absorption primarily take place in the small intestine, where enzymes break down food into smaller molecules and nutrients are absorbed into the bloodstream.

A) Stomach

While the stomach plays a role in digestion, particularly in breaking down food with gastric acids and enzymes, absorption of nutrients is minimal in this organ. Most nutrients are not absorbed until they reach the small intestine.

B) Esophagus

The esophagus is primarily a conduit for food to travel from the mouth to the stomach. It does not participate in digestion or absorption, making it incorrect in this context.

C) Gallbladder

The gallbladder stores bile produced by the liver, which aids in the digestion of fats, but it does not carry out digestion or absorption itself. Therefore, it is not the correct answer.

D) Small intestine

The small intestine is the correct answer because it is the main site where both digestion and absorption occur. Enzymatic activity breaks down food, and the intestinal walls facilitate the absorption of nutrients into the bloodstream.

Conclusion

The small intestine is definitively the region where both digestion and absorption occur, as it is specifically designed for these processes. The stomach, esophagus, and gallbladder do not fulfill both functions, which makes them incorrect options in this context.