Multiple Choice
Which layer of the gastrointestinal (GI) tract comes into direct contact with food?
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23. The Digestive System
Introduction to the Digestive System
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of these organs has no active role in chemical digestion?
A
Small intestine
B
Pancreas
C
Stomach
D
Esophagus
Verified step by step guidance1
Understand the role of each organ in the digestive system: The small intestine, pancreas, and stomach all have specific roles in chemical digestion.
The small intestine is where most chemical digestion and nutrient absorption occur, with enzymes breaking down food molecules.
The pancreas produces digestive enzymes that are released into the small intestine to aid in the breakdown of carbohydrates, proteins, and fats.
The stomach secretes gastric juices, including hydrochloric acid and pepsin, which help in the chemical digestion of proteins.
The esophagus, on the other hand, serves primarily as a conduit for food and liquids to reach the stomach from the mouth, without participating in chemical digestion.
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