(BIOLOGY) The digestive system

• 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
• What is the role of the oesophagus in digestion

  Transports food to the stomach
• Describe two functions of the stomach in digestion

  1.churns and mixes food mechanically digesting food. 2.stomach acid creates the correct conditions for proteases to begin digesting proteins
• What is the function of the pancreas in digestion

  Produces digestive enzymes
• What is the function of the small intestine in digestion

  Absorbs nutrients from broken down food
• What is the function of the large intestine in digestion?

  absorbs water
• What is the function of the rectum In digestion?

  stores undigested waste until it’s egested
• Name two types of digestion

  1.mechanical digestion. 2.chemical digestion
• What are Three important digestive enzymes and their functions?

  1.amylase - breaks down carbohydrates. 2.protease - breaks down proteins. 3.Lipease - breaks down fats and lipids
• What is the role of bile in digestion?

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