YR2-K4-LSN7

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

HAVE READY:

- KWIZL (join class using code 8X2MPA)

- Your back to the teacher

- All other programs closed

- Already done with the quiz?  Start on the Assignments during lesson 7 or work on the food diary/lab report QUIETLY

HAVE READY:

- JOIN THIS LESSONUP

- KERBOODLE PAGE 48

- YOUR NOTEBOOK

- GOOGLE CLASSROOM

LESSON 7

During the presentation...

• Raise your hand before talking
• Take notes
• I don't want to see any phones, cubes or other distracting objects

Announcement: this is our last lesson together for the time being

• From next week onwards, you will have class from Mr. Westdijk again. 
• Because I will be teaching at a different school for 5 weeks, after that I will be back but not for TV2I

I really enjoyed teaching you, and wish you the best for the rest of the year and the future!

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 
• Herbivore 
• Omnivore 
• Carnivore 

read kerboodle pages 54-58

DIGESTIVE ORGANS

The digestive organs

• 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 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.

Work on the assignments during lesson 7

• You may work together with your neighbors, but:
• Everyone needs to hand in the document
• Do NOT move around the classroom to work together
• I don't want to see any phones, cubes or other distracting objects

HW FOR LESSON 8

• Complete the in class assignments for lesson 7
• Complete the lessonup HW for lesson 8
• Work on your project