LESSON 6

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

HAVE READY:

- GOOGLE CLASSROOM

- KERBOODLE PAGE 54

- YOUR HW

LESSON 6

Any questions?:

-do all worksheets that have to do with teeth

- WB PAGE 25

- expand your MINDMAP

Worksheet teeth exercise 1:

Worksheet teeth exercise  2:

• a. the teeth are cearly different because the animals have different diets.
• b. the carnivore's teeth are adaped to hunting. They can be used for gripping and ripping and because of this they chew very little.
• c. the herbivore's teeth are adapted to grazing, they no longer have/need canines.They have incisors specialised for cutting graas and many molars for grinding dow difficut to digest plants.

Worksheet teeth and flouride left side:

Worksheet teeth and flouride right side:

• a) 4,5 teeth b) 3,5 teeth
• 2. this shows that the average number of decayed teeth per person goes does when the fluoride concentration in the water supply goes up.
• opinions ??

Worksheet teeth and decay:

1. What is the function of the molars and premolars in our digestion?
2. What is plaque?
   
3. Why do you think large cavities are painful?
   
4. Why do you think dentists tell us not to eat too many sugary foods?
   
5. Explain why: a) most toothpastes contain fluoride? b) most toothpastes are weak alkalis?
6. Find out what a ‘wisdom tooth’ is. Do all adults have wisdom teeth?
   

FASES OF DIGESTION:

• INGESTION
• MECHANICAL DIGESTION
• CHEMICAL DIGESTION
• ABSORPTION
• EGESTION
• DEFAECATION

INGESTION:

MOVING THE FOOD INTO YOUR MOUTH

MECHANICAL DIGESTION:

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

CHEMICAL DIGESTION:

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

KERBOODLE PAGE 54

Chemical digeston step 1: 

• the place: the mouth (esophagus)
• the enzyme: amylase
• the liquid: saliva
• the nutrient: carbodrates
• the products: glucose & maltose

• The enzymes in your saliva start breaking down the carbohydrate molecules into maltose and glucose.

Chemical digeston step 2: 

• the place: the stomach
• the enzyme: protease
• the liquid: chyme and hydrochloric acid
• the nutrient: proteins
• the products: amino acids

• The enzymes in your chyme start breaking down the protein molecules into amino acids.

HW FOR NEXT TIME:

- make a summary using the cartoon

- WB PAGE 26

- CONTINUE YOUR MINDMAP FOR THIS CHAPTER & MAKE A SCREENSHOT 

- UPOAD THE THIS TO CLASSROOM PLEASE