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Digestion of Starch | Biology for GCSE/IGCSE - Year 11 PDF Download

Digestion of Starch: Extended

  • Amylase enzymes are synthesized both in the mouth and the pancreas, with the pancreas releasing them into the duodenum.
  • Their function involves breaking down starch molecules into simpler sugars.

The digestion of starchThe digestion of starch

  • Amylase is released into the alimentary canal at two points: in the mouth and in the duodenum from the pancreas. Its role is to break down starch into maltose, a disaccharide.
  • Maltose undergoes further digestion by the enzyme maltase, which converts it into glucose on the membranes of the epithelial cells that line the small intestine.

Question for Digestion of Starch
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Where are amylase enzymes synthesized in the body?
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FAQs on Digestion of Starch - Biology for GCSE/IGCSE - Year 11

1. How is starch digested in the human body?
2. What is the role of saliva in the digestion of starch?
Ans. Saliva contains amylase, an enzyme that begins the digestion of starch in the mouth. When we chew food, saliva mixes with it and starts breaking down the starch into simpler sugars.
3. Why is extended digestion of starch important for the body?
Ans. Extended digestion of starch allows for a gradual release of glucose into the bloodstream, which helps in maintaining stable blood sugar levels and providing a steady source of energy for the body.
4. What factors can affect the digestion of starch in the body?
Ans. Factors such as the amount of amylase produced by the body, the type of starch consumed, and individual digestive health can all influence the digestion of starch in the body.
5. How can one improve the digestion of starch in the body?
Ans. To improve the digestion of starch, one can focus on chewing food thoroughly to mix it with saliva, consuming whole grains and fiber-rich foods, and maintaining a balanced diet with proper hydration and regular physical activity.
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