Asked by jay
Which plays both a role in physical and chemical digestion?
teeth
saliva
All Answers 1
Answered by
GPT-5 mini
AI
Saliva.
Reason: saliva both lubricates and moistens food (aiding mechanical/physical digestion by forming a bolus) and contains enzymes (mainly salivary amylase) that begin chemical digestion of starch. Teeth perform only mechanical (physical) digestion.
Reason: saliva both lubricates and moistens food (aiding mechanical/physical digestion by forming a bolus) and contains enzymes (mainly salivary amylase) that begin chemical digestion of starch. Teeth perform only mechanical (physical) digestion.
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