Digestive System

• The digestive system has two main roles. Briefly describe each of them. 

  Digestion - process of breaking down large food molecules into smaller molecules 

  Absorption - process of absorbing these small food molecules into the body
• When we chew food, our teeth physically break the food down into smaller pieces. How does this help? 

  It make the food easier to swallow

  It increases the surface area for enzymes to act on
• Define Digestion:

  The process by which we break down the large food molecules
• Define Absorption:

  The process by which we absorb small molecules
• What does the mouth contain?

  Teeth and salivary glands
• What does the teeth do?

  make food easier to swallow by breaking down food
• What does the salivary glands do?

  Release saliva, and the saliva contains enzyme amalyse
• The amylase digest starch into _______

  Maltose
• Is amylase a biological catalyst true or false?

  True
• What does the pancreas release?

  pancreatic juices into the small intestine
• What does the gallbladder release?

  Release bile into the small intestine
• What juices are released by the pancreas

  Amylase, protease and lipase
• The Gallbladder n___________ the acid from the stomach and e________ the lipids by breaking down big droplets into small droplets

  Neutralises

  Emulsify
• Bile is made in the _____, but stored in the ____________

  Liver

  Gallbladder