1.6 - Breathing in animals

• Biologie
• Middelbare school
• vwo
• Leerjaar 2

Today

- Review 

-Goals for todays lesson

- Respiration in unicellular organisms

- Respiration in insects

- Respiration in fishes

- Respiration in birds

- Homework 

-How to learn for your test

Chest breathing is used during / in

1. your sleep and while resting
2. action
3. both
4. neither

I: respiration takes place in all cells of our body. II: respiration doesn't take place in plant cells

1. Both statements are correct
2. only statement I is correct
3. only statement II is correct
4. neither statement is correct

recall cell respiration

1. carbon dioxide + water -> glucose + oxygen
2. glucose + oxygen -> carbon dioxide + water

Where does respiration take place?

1. Only in the lungs
2. Only in the muscles
3. Both in the lungs and in the muscles
4. In every living cell

Marco coughs a lot. When he coughs his belly muscles contract. Does his diaphragm move upwards or downwards?

Is he breathing in or out?

1. Diaphragm up and breathing in
2. Diaphragm up and breathing out
3. Diaphragm down and breathing in
4. Diaphragm down and breathing out

In what part of the lungs does gas exchange happen?

Which gas leaves the lungs in the same quantities when breathing in?

1. Alveoli - Oxygen
2. Bronchioles - Water vapor
3. Bronchioles - Carbon Dioxide
4. Alveoli - Nitrogen

Respiration only happens in humans

1. True
2. False

what do respiration and breathing have to do with each other?

1. The more respiration, the slower the breathing.
2. The more respiration, the faster the breathing.

Goals

After this lesson:

- You can explain how insects breathe.

- You can explain how fish breathe.

- You can explain how birds breathe.

AMOEBA

• cell membrane
• they live in water
• water
• through diffusion
• folds in the cell membrane

Amoeba

Animal cell

INSECT

• spiracles
• water
• air
• through tubes called spiracles on the side of the body
• the tubes go far into the body.

Review

1. How do unicellular organisms breath?

- through the cell membrane

2. What special organs do insects have?

-tracheae

3. How does gas exchange happen quickly in fish?

-gill lamellae

4. How do birds always have oxygenated air?

-no aveoli but do have air sacs

Homework

1.6 - Do Qs 1 t/m 3 and 5, 6

Prepare for your test