P5 Science Unit 2 Respiratory System.pptx.pdf

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1. UNIT 2
THE RESPIRATORY SYSTEM

2. © 2020 Marshall Cavendish Education Pte Ltd
THE GOALS
1.The main parts of the
respiratory system and
their functions
2.The respiration process
3.Common illnesses related to
respiratory system
4.Keeping our Respiratory
system healthy

5.The way of animals breathe

3. what will happen
if we stop
breathing?

4. Why is air
important to
us?
Because ……..Air contains oxygen.
Living things need oxygen to stay alive.
How do we
breath?

5. Why do we need oxygen to survive?
•All the organs in our body that work together
in our body need oxygen. Oxygen is required
by the body to carry out processes within our
bodies to generate energy to keep us alive.

•All the organ systems that work together in
our body need oxygen to function.

6. How does the air move
into and out of our body?
How do we get oxygen
into our body?
Air enters our body through
our nose and lungs.
Air moves into and out of our
body through the process of
breathing.

7. How does air move
into and out of our
body?
Breathing
Process

8. © 2020 Marshall Cavendish Education Pte Ltd
Parts of Repiratory systems and How to breath
https://www.youtube.com/watch?v=nCxN-k9bK5w
The Human Respiratory System Explained

9. What makes up the respiratory system?
2.2 What Are the Parts of Our Respiratory System and What Are Their Functions?
Page 21

10. NOSE
WINDPIPE
AIR TUBES
LUNGS
AIR SACS

11. What happens
during breathing?

12. •Movements of the ribcage and the thin sheet of muscle
below our lungs during breathing allow gaseous exchange
between our body and the surroundings.
What happens during breathing?

•The air we breathe
in is called inhaled
or inspired air.
•Inhaled air contains
more oxygen than
exhaled air.
•The air we
breathe out is
called exhaled or
expired air.
•Exhaled air
contains more
carbon dioxide
than inhaled air.

13. 6/12

14. 2.3 What Happens During Breathing?

15. Language Connect

Write down the opposite of
•inhaled;
•outwards;
•upwards.

2.3 What Happens During Breathing?

16. 2.4 What Happens to the Oxygen We Breathe In?
What happens to the
oxygen that we
breathe in?

17. What happens to the oxygen that we breathe in?

•Our body uses the oxygen we breathe in to break down
sugar. When sugar is broken down, energy is produced.
•This process is called respiration.
2.4 What Happens to the Oxygen We Breathe In?

18. What happens to our
breathing when we exercise?
Why?

•We breathe more rapidly
because our body needs more
energy during exercise and
needs to take in more oxygen to
produce more energy.
2.4 What Happens to the Oxygen We Breathe In?

19. What is the proper way to breathe during exercise?
Explore
2.4 What Happens to the Oxygen We Breathe In?

20. What are some
illnesses related to
our respiratory
system?
2.5 What Are Some Illnesses Related to Our Respiratory
System?

21. What are some illnesses
related to the respiratory
system?

•Asthma
•Bronchitis
•Emphysema
•Tuberculosis
•Lung cancer

2.5 What Are Some Illnesses Related to Our Respiratory System?

22. What are the causes of these
illnesses and their symptoms?
•Asthma may be caused by an allergy.
Symptoms include coughing,
wheezing or shortness of breath.
2.5 What Are Some Illnesses Related to Our Respiratory System?

23. •Bronchitis may result
when an infection due
to a common cold
becomes more serious,
and by inhaling
cigarette smoke and/or
other air pollutants.
Symptoms include
coughing, wheezing,
shortness of breath
and breathing
difficulties.
What are the causes of these illnesses and their symptoms?

24. What are the causes of these illnesses and their symptoms?
•Emphysema may be caused by smoking, air
pollutants and dust.
Symptoms include coughing and shortness
of breath.
•Tuberculosis is spread by
bacteria.
Symptoms include
coughing.
Effects of emphysema on the lungs
2.5 What Are Some Illnesses Related to Our Respiratory System?

25. What are the causes of these illnesses and their
symptoms?
•Lung cancer may be
caused by smoking,
exposure to poisonous
gases, air pollution and
a family history of lung
cancer.
2.5 What Are Some Illnesses Related to Our Respiratory System?

26. How can we care
for our respiratory
system?
2.6 How Can We Care for Our Respiratory System?

27. What is this mask for and when do we use it?
•The mask is used during haze to protect
ourselves from inhaling small particles found
in the air.
What can we do to protect ourselves during haze?
•Avoid going outdoors.
•Wear a mask that can protect you from inhaling harmful
particles that are in the air.
2.6 How Can We Care for Our Respiratory System?

28. How do we keep our respiratory system healthy?

•Keep our body healthy

•Avoid polluted places

•Say “No” to smoking
2.6 How Can We Care for Our Respiratory System?

29. How do animals
breathe?
2.7 How Do Animals Breathe?
At the end of this section, you should be able to answer
the following question:

30. How do aquatic animals
breathe?
•Fish breathe through
their gills.
•Amphibians (e.g. frogs)
breathe through
their nostrils and lungs
when on land and
through their moist skin
when in water.
•Aquatic mammals come
up to the water
surface to take in air
through their blowholes.
2.7 How Do Animals Breathe?

31. How do land animals breathe?


Most mammals
and birds
breathe through
their nostrils
and into the
lungs.
2.7 How Do Animals Breathe?

32. How do hellbenders breathe?

•They breathe entirely through their skin.
What kind of environment do they need?

•Hellbenders require clean, cold, oxygen-rich freshwater to live.


2.7 How Do Animals Breathe?

33. Group Projects (Scoring 4.2)

- Create 5 groups
- Every groups will get a big asturo paper
- Each group pick one question between 1-5 blindly
- After you get the number, discuss the answer with your group and answer it on the paper
given


No. Questions
1 Mention 5 ways how do we care of our Respiratory system?
2 Mention 5 illnesses that related to our respiratory system and explain them!
3 What Are the Parts of Our Respiratory System and What Are Their Functions?
4 How do land and aquatic animals breathe?
5 What happens during Breathing? And what happens to the oxygen that we breath in?

34. Science Glossary
Allergy
Bad reaction to certain
substances that we come into
contact with
Exhaled
Breathed out
Asthma
Illness that causes the air tubes
to become swollen and filled
with mucus due to an allergy
Expired
Breathed out
Bronchitis
Illness that causes the windpipe
and the two main air tubes to
become swollen
Inhaled
Breathed in
Emphysema
Illness that causes the air sacs
in the lungs to enlarge
Inspired
Breathed in

35. Lungs
Pair of organs that help in gas
exchange
Pollutant
Substance that makes the
environment dirty
Multiply
Increase greatly in number
Respiration
Process in which cells use
oxygen from the air and sugar in
the food we eat to produce
energy
Overreact
Respond with more force than is
necessary
Strenuous
Needing a lot of physical effort
Pant
Breathe with short, quick
breaths
Tuberculosis
Lung disease that is spread by
bacteria
Science Glossary

36. Tumour
Swelling of a part of the body
caused by an abnormal growth
of tissue
Windpipe
Air passage connecting the
nose to the lungs
Wheezing
Breathing with a whistling sound
in the chest

Science Glossary