Question

Which structures secrete enzymes necessary for digestion? Does food pass through all of them?Explain.​

Answer 1

Digestive enzymes are secreted by different exocrine glands including:

1. Salivary glands.
2. Gastric glands in the stomach.
3. Secretory cells(islets) in the pancreas.
4. Secretory glands in the small intestine.

The pancreas and gland cells of the small intestine secrete digestive enzymes that chemically break down complex food molecules into simpler ones. These enzymes include trypsin (for protein digestion), amylase (for carbohydrate digestion), and lipase (for lipid digestion).