YR2-K4-LSN7

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 2

HAVE READY:

- JOIN THIS LESSONUP

- KERBOODLE PAGE 48

- YOUR NOTEBOOK

- GOOGLE CLASSROOM

LESSON 7

TODAY'S LEARNING GOALS:

• I have a good knowledge and understanding of the digestive system.
• I have a good knowledge and understanding of teeth.

TODAY'S KEY WORDS:

• Ingestion 
• Mechanical digestion
• Chemical digestion
• Absorption
• Egestion
• Defaecation 
• Herbdvore 
• Omnivore 
• Carnivore 

read kerboodle pages 54-58

DIGESTIVE ORGANS

The digestive organs

• stick the worksheet in your notebook
• write down the numbers 1-11 in your notebook
• write down the names of the organs in your notebook

The digestive organs

1. liver
2. gall bladder
3. duodenum
4. appendix
5. esophagus
6. stomach
7. pancreas
8. small intestine
9. large intestine
10. rectum
11. anus

rectum

pancreas

liver

mouth

stomach

oesophagus

large intestine

small intestine

6 PHASES

INGESTION:

MOVING THE FOOD INTO YOUR MOUTH

MECHANICAL DIGESTION:

• BREAKING THE FOOD INTO SMALLER PIECES.
• THIS IS DONE BY YOUR TEETH
• BITING AND CHEWING

TEETH:

• INCISORS
• CANINES
• PREMOLARS
• MOLARS

• CHILD HAS 20
• ADULT HAS 32

TEETH:

• ENAMEL
• DENTINE
• PULP
• GUM

• PLAQUE

crown

root

dentine

pulp

jaw bone

gums

enamel

nerves & bloodvessels

What "-vores" do you remember from last schoolyear? (3)

CHEMICAL DIGESTION:

• BREAKING THE FOOD INTO EVEN SMALLER PIECES.
• USING ENZYMES TO BREAK DOWN THE FOOD MOLECULES. 

ABSORPTION

• NUTRIENTS AND SALTS ARE ABSORBED IN THE SMALL INTESTINE
• WATER IS ABSORBED IN THE LARGE INTESTINE

EGESTION & DEFAECATION

• MOVING UNABSORBED MATERIALS FROM THE LARGE INTESTINE TO THE RECTUM
• REMOVING POOP FROM YOUR BODY
• HAPPENS ON AVERAGE ONCE EVERY 24 HOURS.

IMPORTANT DEADLINES

• LESSON 8: SUMMARY (OPTIONAL)
• LESSON 9: GLOSSARY QUIZ (OPTIONAL)
• LESSON 10: TEST & DEADLINE PROJECT 

HW FOR LESSON 8

• COMPLETE THE IN CLASS ASSIGNMENTS FOR LESSON 7
• COMPLETE THE LESSONUP HW FOR LESSON 8
• MAKE SURE YOU WRITE DOWN YOUR SUMMARIES OF THE DAY 
• MAKE A PLAN AND DECIDE IF YOU ARE DOING THE GLOSSARY QUIZ AND OR THE SUMMARY FOR A GRADE.
• WORK ON YOUR PROJECT