BS 1.3 en 1.7 smoking

• Biologie
• Middelbare school
• vmbo k
• Leerjaar 1

Grab your stuff 

You have on your table:
- Your laptop (closed)
- Your book & notebook
- A pen

Today

- What did we do last lesson?

- Goals

- Respiratory system

- Making some excersices

- Nasal- and oral cavity

- Homework 

- Making some excersices

What did we do last lesson?

- Photosynthesis

- Combustion

- Respiration

What is the formula of respiration (= combustion in your body)? 

Glucose

Oxygen

Energy

Carbon dioxide

Water

Combustion in your body = respiration

Getting energy from food 

• Our fuel is glucose
  
• Oxygen is needed to break down glucose (breathing)
  

In plants 

Photosynthesis

CO2 + H2O + sunlight -> C6H12O6 + O2

CO2 = Carbondioxide 

H2O = Water

C6H12O6 = Glucose

O2 = Oxygen

In plants and animals

Combustion (cellular respiration)

O2 + C6H12O6 -> CO2 + H20 + energy

CO2 = Carbondioxide 

H2O = Water

C6H12O6 = Glucose

O2 = Oxygen

Where do we need the energy for?

And other animals / plants?

BS 1.3 respiratory system 

After this lesson:
- You can name parts of the respiratory system with their features and functions.

Respiratory system = ademhalingsstelsel

https://www.youtube.com/watch?v=WzrN6sJ1i_g

moisture the alveolus

High oxygen concentration.

High carbon dioxide concentration.

one cell layer thick

cappilaries around the alveoli

oxygen goes into the red blood cells

oCarbon dioxide goes into the air

Red blood cell transport gasses

BS 7 Smoking - why is it bad?

https://www.youtube.com/watch?v=bA-s39UH4QY

Lets make some excersices

What? Make excercise 1 t/m 6

How? For yourself (in silence)

Time? 10 minutes

Help? Use your book or raise your hand if you have a question.

Finished?
Try to figure out why
breathing in through your nose
is healthier then through your mouth. 

The nasal cavity and oral cavity

When you breath the air comes in through the  nasal cavity or oral cavity.

The nasal cavity is a large, air-filled space above and behind the nose.

In the front part of the nasal cavity are the nasal hairs, they trap larger dust particles. 

Nasal- and mouth cavity

Difference between nasal cavity and mouth cavity:

- The nasal cavity is covered with nasal lining.

Choking

Homework

Make exercise 1 to 8 (unit 1.3) 

to = tot en met