Unit 1 Breathing and respiration

• Nask / Biologie
• Middelbare school
• havo
• Leerjaar 2

Biology

Today

• Introduction
• How we work in the biology lessons
• Discuss 1.1 and 1.2
• Make summary of 1.1 and 1.2
• Make the exercises 4, 5, 9

How to learn

• Reading and making a summary.
• Making exercises and correcting.
• Discuss and repeat the substance. 
• Doing experiments.
• Doing research.
• Drawing.

Unit 1 Breathing and respiration

Overvieuw

1. Respiration is similar to combustion

2. Inhaled air and exhaled air

3. Respiration in organisms

4. The respiratory system

Research: Smoking

1. Breathing and respiration

2. inhaled air and exhaled air

• combustion = verbranding
•  combustion fuel -> energy -> movement + heat
• combustion products = verbrandingsproducten
• fuel + oxygen -> water + carbondioxide

• clear lime water = helder kalkwater

• clear lime water with CO2  becomes                                             cloudy

• indicator = a substance usedto demonstrate the presence of another. 

1.2 Inhaled air and exhaled air

• the composition of the air that you breathe out is not the same as the air you breathe in.  

Workbook exercises

• make exercises 4 and 5 on page 8
• make exercise 9 on page 12

• read page 11 - 13 ( textbook) and make a summary

Today

• Practice your experiment
• Make the questions of your experiment
• Demonstrate the experiment to the group
• Make the exercises 1 t/m 9 of 1.1 and 1.2 in your workbook

The experiments

• experiment 1: Burning a candle
• experiment 2: Detecting carbon dioxide 
• experiment 3: A burning candle and carbon dioxide
• experiment 6: The oxygen content of inhaled and exhaled air
• experiment 7: The carbon dioxide content of inhaled and exhaled air.

homework

• Make the exercises 1 t/m 9 from 1.1 and 1.2 (page 6 t/m 12 of your workbook) 
• Make a summary of 1.3

Today

• Discuss 1.3
• Hand in the summary of 1.3 in Teams
• Check your work: 1.1 and 1.2 
• Do the exercise 11 in couples
• Make the exercises 10 till 14 of 1.3 

Today

• Discuss exercise 10, 11 and 12
•  Explain and draw the respiratory system
• Make a summary of 1.4
• Make the exercises of 1.4

1.4 the respiratory system

nasal cavity

oral cavity

pharynx

larynx =voicbox

windpipe

bronchi

lung

diaphragm

bronchiole

alveoli

nasal lining

mucus producing cells

mucous membrane

ciliated cell

bloodvessel

• particals and germs trapt by nasal hairs, smaller bits by the cilia. They sweep the mucus towards the pharynx. Then you swallow it. 
• 
  
• Olfactory system: reuksysteem: located in the roof of the nasal cavity
  

• Breathe trough your noise:

1. - to clean the air
2. - to make the air warm
3. - to moiste the air
4. - to smell and warn you
5. .... so its more healthy than breathing trough your mouth.

Bronchiole

Alveoli

What to do

• Read 1.4 topic by topic
• Make a summary of every topic
• Dont forget to at some drawings 

Today lesson 1

• Test 1.1 - 1.4 next week!
• Make a picture or pictures of your summary and upload it in teams. 
• Make the exercises from 1.4
• Check and correct.
• Start the assignment unit 1 Respiration: in teams! 

Lessonup

• go to: www.lessonup.com
•  registreer jezelf
• ad the classcode:

2Vta: kjnpq

2Vtb: dmvwh

2HVt: dmvwh

Make a couple to do the assignement

Choose a topic from the list A to Z

Lesson 2 

• Check the knowledge of Unit one in lessonup.
• At yourself to the group in the online methode. 
• Finish your work and correct your work of 1.4.
•  Do the test yourself online

Lessonup

• go to: www.lessonup.com
•  registreer jezelf
• ad the classcode:

2Vta: kjnpq

2Vtb: dmvwh

2HVt: dmvwh

Why turns the candle off when the lid
is put over the candle?
And why is the limewater cloudy
afterwards?

1. the candle goes out because of the lack of CO2. The limewater cloudy because of O2 is produces
2. the candle goed out because the wax is used up. The limewater turns cloudy because CO2 is produced.
3. the candle goes out because of the lack of O2. The limewater cloudy because of CO2 is produces
4. the candle goed out because the wax is used up. The limewater turns cloudy because O2 is produced.

Which of the following conclusions from this experiment is correct?

1. The exhaled air contains more carbon dioxide than the air in the bicycle pump.
2. The exhaled air contains less carbon dioxide than the air in the bicycle pump.
3. The exhaled air contains more oxygen than the air in the bicycle pump.
4. The exhaled air contains less oxygen than the air in the bicycle pump

A hedgehog and a squirrel are
roughly the same size.
Hedgehogs hibernate during
the winter but squirrels do not.

Which of these two animals will need the most energy during the winter, and why?

1. The hedgehog, because it is cold-blooded and the squirrel is not.
2. The hedgehog, because it needs a lot of energy for hibernation.
3. The squirrel, because it is warm-blooded and the hedgehog is not.
4. The squirrel, because it needs a lot of energy to be active.

Name a mammal found in the Netherlands that hibernates

One example why breathing trough the nose is more healty?

Make a list 1 to 9 and name the parts. 

Make a picture of the list and upload it

malmberg your biology

• V2ta: 775187
• hv2t: 289732
• V2tb: 376857 

At yourself in the right group and work on "Test yourself"

What to do

• Make the questions of test yourself online
• Did you check al the exercises 1.1 to 1.4 in your workbook?
• Did you finish the summaries 1.1 to 1.4? 
• Did your upload 1.4 in teams?
• Work on the assignment respiration diseases.