11.1 Organs involved in gas exchange in humans.pptx

1. Assignment of Pre-Class
• For this pre-class activity students are asked to read
material from a text book.
• Topic: Organs involved in gas exchange in humans
• Page : pdf 118-119
• The students only need to read 10-15 minutes and
the most important thing is to understand the
reading material for tomorrow's learning
• Then make at least 1 question about the topic and
submit to classroom google

2. Mahbub Masduqi
Complete Biology for Cambridge IGCSE
Page pdf 118 and 119

3. Dalil
• ‫د‬ُ‫ع‬َ‫ت‬ ‫ن‬ِّ‫إ‬ َ‫و‬ ۚ ُ‫ه‬‫و‬ُ‫م‬ُ‫ت‬ْ‫ل‬َ‫أ‬َ‫س‬ ‫ا‬َ‫م‬ ِّ‫ل‬ُ‫ك‬ ‫ن‬ِّ‫م‬ ‫م‬ُ‫ك‬ٰ‫ى‬َ‫ت‬‫ا‬َ‫ء‬ َ‫و‬
‫ا‬َ‫ه‬‫و‬ُ‫ص‬ْ‫ح‬ُ‫ت‬ َ
‫َل‬ ِّ ‫ه‬
‫ٱَّلل‬ َ‫ت‬َ‫م‬ْ‫ع‬ِّ‫ن‬ ۟‫وا‬
ۗ
‫ه‬‫ن‬ِّ‫إ‬
ٌ‫ار‬‫ه‬‫ف‬َ‫ك‬ ٌ‫م‬‫و‬ُ‫ل‬َ‫ظ‬َ‫ل‬ َ‫ن‬َٰ‫س‬‫ن‬ِّ ْ
‫ٱْل‬
Referensi: https://tafsirweb.com/4080-quran-surat-ibrahim-ayat-34.html
• Dan Dia telah memberikan kepadamu (keperluanmu) dan segala apa yang kamu
mohonkan kepadanya. Dan jika kamu menghitung nikmat Allah, tidaklah dapat kamu
menghinggakannya. Sesungguhnya manusia itu, sangat zalim dan sangat mengingkari
(nikmat Allah) (QS Ibrahim : 34)
• How can you correlate this dalil with our topic?
Mahbub Masduqi

4. What is this?
• What is it for?
• A ventilator is a machine that helps
you breathe or breathes for you
Mahbub Masduqi

5. Material exchange
• Every organism must exchange materials with its
environment
• And this exchange ultimately occurs at the cellular level
• Exchange of substance is played by circulatory system
(O2-CO2 in alveolus, waste product in kidney, nutrients in
small intestines)
Mahbub Masduqi

6. Gas exchange in humans
• Living organisms must be able to take
oxygen from the air and get rid of
carbon dioxide to the air.
• Swapping oxygen for carbon dioxide
in this way is called gas exchange (or
gaseous exchange).
• Gas exchange takes place through a
gas exchange surface, also known as
a respiratory surface.

7. Organs involved in
gas exchange
1. Nose (nasal cavity)
2. Pharynx
3. Larynx
4. Trachea
5. Bronchial tree
6. Lungs (bronchioles and alveolus)

8. The roles of organs
involved in gas
exchange
1. Nose (nasal cavity)
2. Pharynx
3. Larynx
4. Trachea
5. Bronchial tree
6. Lungs (bronchioles and alveolus)

9. Gas exchange in the lungs

10. Answer these questions!
1. Name each part and explain the
functions!
2.
CLASS ACTIVITY

11. Answer – Class activity 11.1
1. Nose: entrance of breathing.
2. Pharynx: main function of the pharynx is as a respiratory and digestive tract
3. Larynx: The main function of the larynx is to protect the respiratory tract below by closing quickly on
mechanical stimulation, thus preventing the entry of foreign objects into the airway.
4. Trachea: as a provider of respiratory access for the body.
5. Bronchus
6. Bronchioles: Bronchiolus serves to channel air from the bronchi to the alveoli.
7. Alveolus: The first function of alveolus in the human respiratory system was the place where gas exchange
occurred in the lungs
8. Capillary network: They help to connect your arteries and veins in addition to facilitating the exchange of
certain elements between your blood and tissues.

12. REVIEW ASSIGNMENT
The purpose of this Review section is to strengthen your knowledge
your gained from the Teaching-Learning Process.
Instructions:
1. Create note-taking summary or mind-map from the class room
session
2. Upload screen shoot of your note-taking

13. Assignments of Post-Class
1) Most larger animals transport oxygen in
red blood cells. What are the advantages
of transporting oxygen in this way? How is
a red blood cell adapted to its function of
oxygen transport?
2) What is the difference between
respiration and gas exchange?
3) What happen if a person has 1 lung?
Mahbub Masduqi
4)

14. Answer – Assignment of post class 11.1
1. the advantages is red blood cells transport oxygen around the body. They are specialised to carry oxygen
because they: contain large quantities of a protein called haemoglobin , which can bind oxygen. don't have a
nucleus, so there is more room for haemoglobin. Red blood cells have adaptations that make them suitable
for this: they contain haemoglobin - a red protein that combines with oxygen. They are small and flexible so
that they can fit through narrow blood vessels. they have a biconcave shape (flattened disc shape) to
maximise their surface area for oxygen absorption.
2. respiration is the process that releases energy from the food. Gas exchange is how take O2 and rid of CO2.
3. Though having both lungs is ideal, it is possible to live and function without one lung. Having one lung will
still allow a person to live a relatively normal life. Having one lung might limit a person's physical abilities,
however, such as their ability to exercise.
4. D

15. Other reference
• https://www.bbc.co.uk/bitesize/guides/z6h4jxs/revision/3