A bite of starchy food is chewed and mixed with saliva. Which description matches what happens in the mouth?
Teeth absorb nutrients, and saliva digests most fats.
Teeth break food apart, and saliva begins starch digestion.✓Richtige Antwort
Teeth produce bile, and saliva stores the food.
Teeth perform chemical digestion, and saliva performs none.
Erklärung
Teeth break the food into smaller physical pieces, while saliva moistens it and begins chemical digestion of starch. Teeth do not absorb the nutrients, and the mouth performs more than mechanical processing alone.