Describe two roles of the mouth in digestion.

  1. Chewing breaks up food mechanically digesting it.
  2. Saliva is added which contains the enzyme amylase and begins the digestion of carbohydrates.

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What is the role of the oesophagus in digestion?

The oesophagus transports food to the stomach.

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Describe two functions of the stomach in digestion.

  1. The stomach churns and mixes food mechanically digesting food.
  2. The stomach acid creates the correct conditions for proteases to begin digesting proteins.

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What is the function of the pancreas in digestion?

The pancreas produces digestive enzymes.

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What is the function of the small intestine in digestion?

The small intestine absorbs nutrients from broken down food.

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What is the function of the large intestine in digestion?

The large intestine absorbs water.

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What is the function of the rectum in digestion?

The rectum stores undigested waste until it's egested.

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Name the two types of digestion.

  1. Mechanical digestion
  2. Chemical digestion

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What are three important digestive enzymes and their functions?

  1. Amylase - Breaks down carbohydrates.
  2. Protease - Breaks down proteins.
  3. Lipase - Breaks down fats and lipids.

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What is the role of bile in digestion?

Bile emulsifies fats, breaking them into smaller pieces for lipase enzymes to act on them.

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