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Question

Explain the role of mouth in the digestion of food. [3 marks]

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Solution

The role of mouth in the digestion of food are:

(a) Food is crushed into small pieces by the teeth. (1 mark)

(b) The food is then mixed with saliva and the enzyme amylase (found in saliva) breaks down starch into sugars. (1 mark)

(c) The tongue helps in thorough mixing of food with saliva. (1 mark)


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