4 - Digestive organs

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

LESSON 4

Review lesson 1:

• Nutrients 
• Sources and Uses 

What is sodium an example of?

1. carbohydrates
2. water
3. minerals
4. vitamins

What are peaches a good source of?

1. carbohydrates
2. water
3. fibres
4. proteins

What are nuts a good source of?

1. carbohydrates
2. water
3. fibres
4. proteins

Review lesson 2:

• balanced diets
• dietary choices
• psychological issues with food

Someone who is a ovotarian does not eat ..... and does eat .........?

1. vegetables, cheese
2. meat, eggs
3. meat, fish
4. vegetables, fish

Explain the difference between a vegetarian and a pescatarian.

Which religion does not allow any alcohol and any pork products?

1. Islam
2. Buddhism
3. Judeism
4. Christianity

Review lesson 3:

• Deficiencies
• Diabetes
• Unhealthy lifestyles

What deficiency is caused by a lack of iron?

1. scurvy
2. rickets
3. anemia
4. marasmus

What deficiency is caused by a lack of vitamin C?

1. scurvy
2. rickets
3. anemia
4. marasmus

What deficiency is caused by a lack of vitamin D & calcium?

1. scurvy
2. rickets
3. anemia
4. marasmus

Which type of diabetes is caused by a very unhealthy lifestyle?

1. type 1
2. type 2

Which type of diabetes is preventable?

1. type 1
2. type 2

LESSON 4

TODAY:

• How does our body process the food?
• Phases of digestion
• Teeth

How does our body process the food?

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

TIP!!

TOGETHER THESE TERMS ARE CALLED THE 7 FASES OF DIGESTION

rectum

pancreas

liver

mouth

stomach

oesophagus

large intestine

small intestine

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)

HW FOR LESSON 5: 

• Complete the hw on classroom 
• Study the Quizlet of "Glossary Food & Digestion" (100% on learn, match and flashcards)