Digestion

• What is the main purpose of digestion?

  To break down food into nutrients
• Where does digestion of starch begin?

  In the mouth
• Which enzyme breaks down starch into sugars?

  Amylase
• Where is bile produced?

  Liver
• What is the role of bile in digestion?

  To emulsify fats, making them easier to digest
• What is the main function of the small intestine in digestion?

  To absorb nutrients from digested food
• Which enzyme is involved in the digestion of proteins?

  Protease
• What is the primary function of the large intestine in digestion?

  To absorb water and form feces
• Which of the following is absorbed in the small intestine?

  Nutrients like amino acids, glucose, and fatty acids
• What happens to food in the stomach?

  It is broken down by stomach acid and enzymes
• stomach


  Chemically (enzymes) and mechanically (churning) digests food

  Acid kills bacteria on food

  
• Oesophagus


  Sends food to the stomach via peristalsis

  
• large intestine


  Absorbs water and forms waste

  
• liver


  makes bile

  
• mouth


  Chemical digestion (amylase) Physical digestion using teeth

  
• gall bladder


  stores bile

  
• digestive system


  body system the breaks down food and absorbs nutrients

  
• rectum


  stores solid waste
• chemical digestion


  breaking down food with enzymes
• physical digestion


  crushing, mashing or breaking down food

  
• bile


  a fluid that helps break down fats in the small intestines
• saliva


  Fluid in the mouth, contains enzymes - amylase

  
• pancreas


  makes enzymes and sends them into the small intestines

  
• teeth x 4


  molars, premolars, canines, incisors
• Peristalsis


  using muscles to contract & relax to move food

  
• Amylase


  Enzyme in saliva that breaks down starch into maltose(sugar)
• Carbohydrates


  the starches and sugars present in foods

  
• Fats


  Used to insulate the body

  
• Proteins


  Used for growth & repair

  
• Ingestion


  Intake of food

  
• digestion


  Breaking down food

  
• Absorption


  The process by which nutrient molecules pass through the small intestines into the blood

  
• Egestion


  removal of undigested waste

  
• small intestines


  completes digestion and absorbs nutrients into the bloodstream