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Question

In mammals, the digestion of starch starts from
  1. Mouth
  2. Oesophagus
  3. Stomach
  4. Duodenum

A
Mouth
B
Oesophagus
C
Duodenum
D
Stomach
Solution
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In mouth cavity, food is chewed to break them into smaller particles. Saliva secreted from salivary gland contains an enzyme called salivary amylase or ptyalin. Carbohydrate digestion starts in the buccal cavity by amylase. The gradual degradation of carbohydrate or starch occurs by the action of amylase on the glycosidic linkages in the polysaccharide.

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