YR1_T2_LSN4

• Science
• Middelbare school
• havo, vwo
• Leerjaar 1

HAVE READY

• YOUR TEXTBOOK
• YOUR NOTEBOOK
• A PEN/MARKER
• YOUR MACBOOK (JOIN THIS LESSONUP) 

TOPIC 2.3: DIGESTION

• I know the steps of the digestive system
• I know which organs the food goes through and what happens in those organs with the food
• I know the three different types of teeth and what they are used for.
• I understand the difference between a carnivore, omnivore and herbivore and can recognize them by their teeth

p. 64-75

TOPIC 2.3: DIGESTION

• Ingestion
• Digestion
• Absorption
• Egestion
• Enzymes
• Carnivore
• Herbivore
• Omnivore

p.64-75

INGESTION

• With your mouth you bit and chew your food. You ingest the food.
• This helps to break your food into smaller pieces and mix it with saliva.
• You do this in your mouth and with your teeth. 
• Food moves onto your oesophagus.
• Your saliva contains enzymes that help to start the digestion of your food. 

p.64-66

DIGESTION

• Digestion is the process of breaking 

       down large molecules into smaller ones. 

• The organs that do this are called 

        your digestive system.

• Enzymes are molecules that help break 

      down your food.

• Most digestion with enzymes happens in 

      the oesophagus, stomach and small intestine.

• The liver helps to make a bile, it is stored in your 

        gall bladder. This helps break down fats which helps with digestion.

p.64-66

ABSORPTION

• After most of the digestion is done , the nutrients move on to be absorbed.
• Most nutrients are absorbed in the  small intestine. 
  
• Water and a few final vitamins are absorbed in the large intestine. 

   

p.64-66

Egestion

• Anything your body cannot absorb is combined to form faeces. (scientific work for poop)
• This faeces is moved towards your rectum and stored there till you go to the toilet. When it is egested. 

p.64-66

rectum

liver

mouth

stomach

oesophagus

large intestine

small intestine

TEETH:

• INCISORS
• CANINES
• PREMOLARS
• MOLARS

• CHILD HAS 20
• ADULT HAS 32

Hw for the next lesson

• Study for the quiz.

p. 54-63