Question

select all the correct answers.
which organs perform both mechanical digestion and chemical digestion of food?

• mouth
• pancreas
• small intestine
• stomach

Explanation:

• Mouth: Mechanical digestion occurs via chewing (mastication) to break food into smaller pieces; chemical digestion happens when salivary amylase breaks down carbohydrates.
• Pancreas: Only produces digestive enzymes (chemical digestion) and does not perform mechanical digestion.
• Small intestine: Primarily carries out chemical digestion via enzymes from the pancreas and bile, with no major mechanical digestion (peristalsis moves food but does not break it down physically for digestion).
• Stomach: Mechanical digestion occurs through churning of food into chyme; chemical digestion happens via pepsin breaking down proteins and gastric acid aiding breakdown.

Answer:

mouth, stomach