Unit 1.4 Breathing

• Biologie
• Middelbare school
• vwo
• Leerjaar 3

BS 1.4 Breathing

You can state the differences between inhaled air and exhaled air.

You can describe how inhalation and exhalation are achieved.

Planning

Homework check BS1.3

Reflection on lungdemonstration

Exercise paragraph 1.3: respiratory system

Instruction gas exchange 

Exercises on gas exchange 

Reflection on lungdemonstration

Discuss some questions 

Write down the name of 1 to 3, 10 to 12 and 16

check 

1. Nasal cavity

2. Larynx

3. Windpipe

10. uvula (huig)

11. epiglottis (strotklepje)

12. oesophagus (slokdarm)

16. alveoli 

Gas exchange =

absorption and release of oxygen and carbon dioxide through the alveoli

Make exercises 1, 5, 6, 7, 10ab

BS1.4

Done? Read BS1.4 chest breathing and abdominal breathing

Lesson 2 on BS1.4 Breathing

Next week: warm and cold blooded animals + repetition 

The week after (16th of October): Test Chapter 1.1 to 1.4 and 1.8

Planning

• In pairs: Repeat assignment last lesson 
  
• Individually: Read BS1.4: chest breathing and abdominal breathing, underline (or write down) difficult words
  
• Plenary: Discuss the text/difficult words
  
• Homework: ex. 1 to 3, 5, 6, 8 and 9 of BS1.4

Exercise

When you breathe in, you absorb ..(1).. from the air. 

The blood transports oxygen to the cells where it is used for ..(2).. of glucose. 

When you are breathing out, you are getting rid of ..(3).. to the surrounding air. 

The absorption and release of oxygen and carbon dioxide through the alveoli is called ..(4).. . 

Mechanical breathing

Two types:

- Chest breathing

- Abdominal breathing

Chest breathing

Abdominal breathing

Diaphragm