Examples of Digestive Enzymes - Amylase

Biology: AQA GCSE Higher, topic 2.2.8

Amylase

Carbohydrase enzymes break carbohydrates down into sugars. Amylase is a type of carbohydrase that can break down starch in our bodies:

Production

Production

  • Amylase is produced in:
  • Pancreas.
  • Salivary glands.
Purpose

Purpose

  • Amylase breaks down starch into its constituent simple sugars (predominantly maltose).
  • Starch → Maltose (+ other sugars).
Action sites

Action sites

  • The sites of action of amylase are:
  • The small intestine.
  • The mouth.

Test yourself on Examples of Digestive Enzymes - Amylase

  • Why do humans have more copies of the amylase gene than chimpanzees?

  • What happens to starch in a piece of bread while it is being chewed in the mouth?

  • A person's pancreas stops producing amylase. What effect would this have on starch digestion in the small intestine?

  • Why is amylase classified as a carbohydrase rather than another type of enzyme?

  • A student claims that amylase acts in the stomach. Why is this claim incorrect?

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