Enviar pesquisa
Carregar
8brespiration 120607150701-phpapp01
•
Transferir como PPT, PDF
•
0 gostou
•
612 visualizações
SUSAN MATHEW
Seguir
respiration
Leia menos
Leia mais
Ciências
Denunciar
Compartilhar
Denunciar
Compartilhar
1 de 26
Baixar agora
Recomendados
Ks4 blood vessels
Ks4 blood vessels
SUSAN MATHEW
8 b respiration (boardworks)
8 b respiration (boardworks)
Preeti Ghosh
Ks4 the heart and circulatory system
Ks4 the heart and circulatory system
SUSAN MATHEW
Ks4 respiration
Ks4 respiration
SUSAN MATHEW
Ks4 what is blood
Ks4 what is blood
SUSAN MATHEW
respiratory_system
respiratory_system
nkululekodlamini11
8 a food & digestion (boardworks)
8 a food & digestion (boardworks)
Preeti Ghosh
Ks4 movement in and out of cells
Ks4 movement in and out of cells
SUSAN MATHEW
Recomendados
Ks4 blood vessels
Ks4 blood vessels
SUSAN MATHEW
8 b respiration (boardworks)
8 b respiration (boardworks)
Preeti Ghosh
Ks4 the heart and circulatory system
Ks4 the heart and circulatory system
SUSAN MATHEW
Ks4 respiration
Ks4 respiration
SUSAN MATHEW
Ks4 what is blood
Ks4 what is blood
SUSAN MATHEW
respiratory_system
respiratory_system
nkululekodlamini11
8 a food & digestion (boardworks)
8 a food & digestion (boardworks)
Preeti Ghosh
Ks4 movement in and out of cells
Ks4 movement in and out of cells
SUSAN MATHEW
9 c plants and photosynthesis
9 c plants and photosynthesis
Lee TeckBee
Mr Exham IGCSE - Respiration
Mr Exham IGCSE - Respiration
mrexham
Excretion: BIOLOGY O LEVEL
Excretion: BIOLOGY O LEVEL
Faiz Abdullah
IGCSE Biology Edexcel (9-1)-Nutrition (humans)
IGCSE Biology Edexcel (9-1)-Nutrition (humans)
ssnm88
Formation of tissue fluid
Formation of tissue fluid
stvb2170
The endocrine system and hormones
The endocrine system and hormones
Magdaléna Kubešová
Transport system in humans
Transport system in humans
Faiz Abdullah
6.2 and 6.4 transport and respiration
6.2 and 6.4 transport and respiration
Bob Smullen
A level biology photosynthesis
A level biology photosynthesis
Bilegdemberel Magadaa
AS Level Biology - 1) Biological Molecules
AS Level Biology - 1) Biological Molecules
Arm Punyathorn
adaptation-boardworks.ppt
adaptation-boardworks.ppt
ssuserae58e9
A Level Biology - Energy for Biological Processes
A Level Biology - Energy for Biological Processes
mrexham
IB Biology 2.2 Slides: Water
IB Biology 2.2 Slides: Water
Jacob Cedarbaum
AS Level Biology - 8) Transport in Mammals
AS Level Biology - 8) Transport in Mammals
Arm Punyathorn
Protein Synthesis Review (2.7-7.2-7.3)
Protein Synthesis Review (2.7-7.2-7.3)
Jacob Cedarbaum
BIOLOGY FORM 5 CHAPTER 1: 1.4 THE LYMPHATIC SYSTEM
BIOLOGY FORM 5 CHAPTER 1: 1.4 THE LYMPHATIC SYSTEM
Nirmala Josephine
Biology revision for B1
Biology revision for B1
Louisatom
Chapter 10 respiration
Chapter 10 respiration
Xu Jia Xian
Gas exchange
Gas exchange
Magdaléna Kubešová
Respiration IGCSE
Respiration IGCSE
Kennedy High the global school
8decologicalrelationships 120607150803-phpapp01
8decologicalrelationships 120607150803-phpapp01
SUSAN MATHEW
Presentation
Presentation
kaylasoup27
Mais conteúdo relacionado
Mais procurados
9 c plants and photosynthesis
9 c plants and photosynthesis
Lee TeckBee
Mr Exham IGCSE - Respiration
Mr Exham IGCSE - Respiration
mrexham
Excretion: BIOLOGY O LEVEL
Excretion: BIOLOGY O LEVEL
Faiz Abdullah
IGCSE Biology Edexcel (9-1)-Nutrition (humans)
IGCSE Biology Edexcel (9-1)-Nutrition (humans)
ssnm88
Formation of tissue fluid
Formation of tissue fluid
stvb2170
The endocrine system and hormones
The endocrine system and hormones
Magdaléna Kubešová
Transport system in humans
Transport system in humans
Faiz Abdullah
6.2 and 6.4 transport and respiration
6.2 and 6.4 transport and respiration
Bob Smullen
A level biology photosynthesis
A level biology photosynthesis
Bilegdemberel Magadaa
AS Level Biology - 1) Biological Molecules
AS Level Biology - 1) Biological Molecules
Arm Punyathorn
adaptation-boardworks.ppt
adaptation-boardworks.ppt
ssuserae58e9
A Level Biology - Energy for Biological Processes
A Level Biology - Energy for Biological Processes
mrexham
IB Biology 2.2 Slides: Water
IB Biology 2.2 Slides: Water
Jacob Cedarbaum
AS Level Biology - 8) Transport in Mammals
AS Level Biology - 8) Transport in Mammals
Arm Punyathorn
Protein Synthesis Review (2.7-7.2-7.3)
Protein Synthesis Review (2.7-7.2-7.3)
Jacob Cedarbaum
BIOLOGY FORM 5 CHAPTER 1: 1.4 THE LYMPHATIC SYSTEM
BIOLOGY FORM 5 CHAPTER 1: 1.4 THE LYMPHATIC SYSTEM
Nirmala Josephine
Biology revision for B1
Biology revision for B1
Louisatom
Chapter 10 respiration
Chapter 10 respiration
Xu Jia Xian
Gas exchange
Gas exchange
Magdaléna Kubešová
Respiration IGCSE
Respiration IGCSE
Kennedy High the global school
Mais procurados
(20)
9 c plants and photosynthesis
9 c plants and photosynthesis
Mr Exham IGCSE - Respiration
Mr Exham IGCSE - Respiration
Excretion: BIOLOGY O LEVEL
Excretion: BIOLOGY O LEVEL
IGCSE Biology Edexcel (9-1)-Nutrition (humans)
IGCSE Biology Edexcel (9-1)-Nutrition (humans)
Formation of tissue fluid
Formation of tissue fluid
The endocrine system and hormones
The endocrine system and hormones
Transport system in humans
Transport system in humans
6.2 and 6.4 transport and respiration
6.2 and 6.4 transport and respiration
A level biology photosynthesis
A level biology photosynthesis
AS Level Biology - 1) Biological Molecules
AS Level Biology - 1) Biological Molecules
adaptation-boardworks.ppt
adaptation-boardworks.ppt
A Level Biology - Energy for Biological Processes
A Level Biology - Energy for Biological Processes
IB Biology 2.2 Slides: Water
IB Biology 2.2 Slides: Water
AS Level Biology - 8) Transport in Mammals
AS Level Biology - 8) Transport in Mammals
Protein Synthesis Review (2.7-7.2-7.3)
Protein Synthesis Review (2.7-7.2-7.3)
BIOLOGY FORM 5 CHAPTER 1: 1.4 THE LYMPHATIC SYSTEM
BIOLOGY FORM 5 CHAPTER 1: 1.4 THE LYMPHATIC SYSTEM
Biology revision for B1
Biology revision for B1
Chapter 10 respiration
Chapter 10 respiration
Gas exchange
Gas exchange
Respiration IGCSE
Respiration IGCSE
Destaque
8decologicalrelationships 120607150803-phpapp01
8decologicalrelationships 120607150803-phpapp01
SUSAN MATHEW
Presentation
Presentation
kaylasoup27
Film Reference
Film Reference
Sumbul Khan
Location recce
Location recce
lukej123
Branný pretek pravidla
Branný pretek pravidla
Pavol Varačka
Физика и техника
Физика и техника
XOMA06
Evaluation. Q2. How does your media product represent different social groups?
Evaluation. Q2. How does your media product represent different social groups?
ellegrey26
горе от ума интеллект-турнир
горе от ума интеллект-турнир
Zhanna Gennadievna Rodina
физика и техника
физика и техника
XOMA06
Catalogo Dolciaria Severini - Norcia Pasticceria
Catalogo Dolciaria Severini - Norcia Pasticceria
DolciariaSeverini
@ Symbol
@ Symbol
Alina Denysenko
Brochure
Brochure
bsstesting
TiP-Ed Online Education MRI
TiP-Ed Online Education MRI
GEANZ
Explaining No-Fuss Advice In Legal Background Search
Explaining No-Fuss Advice In Legal Background Search
plausibleclaw2751
Destaque
(14)
8decologicalrelationships 120607150803-phpapp01
8decologicalrelationships 120607150803-phpapp01
Presentation
Presentation
Film Reference
Film Reference
Location recce
Location recce
Branný pretek pravidla
Branný pretek pravidla
Физика и техника
Физика и техника
Evaluation. Q2. How does your media product represent different social groups?
Evaluation. Q2. How does your media product represent different social groups?
горе от ума интеллект-турнир
горе от ума интеллект-турнир
физика и техника
физика и техника
Catalogo Dolciaria Severini - Norcia Pasticceria
Catalogo Dolciaria Severini - Norcia Pasticceria
@ Symbol
@ Symbol
Brochure
Brochure
TiP-Ed Online Education MRI
TiP-Ed Online Education MRI
Explaining No-Fuss Advice In Legal Background Search
Explaining No-Fuss Advice In Legal Background Search
Semelhante a 8brespiration 120607150701-phpapp01
Human respiratory system
Human respiratory system
Raaghav Bhatia
Respiration
Respiration
Hasimah Azit
Biology M2 Respiration
Biology M2 Respiration
eLearningJa
Breathing & Respiration
Breathing & Respiration
Nazib Uchchhas
Respiration and the respiratory system revision
Respiration and the respiratory system revision
Mrs Parker
Respiration 3rd
Respiration 3rd
Andrea Sánchez del Rio
Respiratory System - Physiology
Respiratory System - Physiology
Dr. Binu Babu Nursing Lectures Incredibly Easy
physiologyofrespiratorysystem-160906102826 (1).pptx
physiologyofrespiratorysystem-160906102826 (1).pptx
mitchopda
Respiration
Respiration
biotogo
4to respiratory system for students
4to respiratory system for students
Andrea Sánchez del Rio
Respiration in humans grade 7 notes
Respiration in humans grade 7 notes
meera chavda
Respiration
Respiration
chenghong03
BIOLOGY FORM 4 CHAPTER 7 - RESPIRATION PART 1
BIOLOGY FORM 4 CHAPTER 7 - RESPIRATION PART 1
Nirmala Josephine
Respiration
Respiration
BassemKashour
LIFE PROCESSES
LIFE PROCESSES
sukhman singh
The Human Respiratory System
The Human Respiratory System
ANJANA VIDHYADHARAN
Respiratory System
Respiratory System
guest4f6f90
Mechanisms of gas exchange
Mechanisms of gas exchange
GERRY ABELLA
The human respiratory system
The human respiratory system
ANJANA VIDHYADHARAN
The human respiratory system ppt.1pptx
The human respiratory system ppt.1pptx
ANJANA VIDHYADHARAN
Semelhante a 8brespiration 120607150701-phpapp01
(20)
Human respiratory system
Human respiratory system
Respiration
Respiration
Biology M2 Respiration
Biology M2 Respiration
Breathing & Respiration
Breathing & Respiration
Respiration and the respiratory system revision
Respiration and the respiratory system revision
Respiration 3rd
Respiration 3rd
Respiratory System - Physiology
Respiratory System - Physiology
physiologyofrespiratorysystem-160906102826 (1).pptx
physiologyofrespiratorysystem-160906102826 (1).pptx
Respiration
Respiration
4to respiratory system for students
4to respiratory system for students
Respiration in humans grade 7 notes
Respiration in humans grade 7 notes
Respiration
Respiration
BIOLOGY FORM 4 CHAPTER 7 - RESPIRATION PART 1
BIOLOGY FORM 4 CHAPTER 7 - RESPIRATION PART 1
Respiration
Respiration
LIFE PROCESSES
LIFE PROCESSES
The Human Respiratory System
The Human Respiratory System
Respiratory System
Respiratory System
Mechanisms of gas exchange
Mechanisms of gas exchange
The human respiratory system
The human respiratory system
The human respiratory system ppt.1pptx
The human respiratory system ppt.1pptx
Mais de SUSAN MATHEW
Vitaminsand minerals
Vitaminsand minerals
SUSAN MATHEW
Special diets
Special diets
SUSAN MATHEW
Ks4 plant responses
Ks4 plant responses
SUSAN MATHEW
Ks4 inheritance
Ks4 inheritance
SUSAN MATHEW
Ks4 chromosomes, genes and dna
Ks4 chromosomes, genes and dna
SUSAN MATHEW
Ks4 cell division and fertilization
Ks4 cell division and fertilization
SUSAN MATHEW
Immunity
Immunity
SUSAN MATHEW
Cells
Cells
SUSAN MATHEW
14. diet & nutrition
14. diet & nutrition
SUSAN MATHEW
9cplantsandphotosynthesis 120607151019-phpapp01
9cplantsandphotosynthesis 120607151019-phpapp01
SUSAN MATHEW
9ainheritanceandselection 120607151125-phpapp01
9ainheritanceandselection 120607151125-phpapp01
SUSAN MATHEW
8afoodanddigestion 120607150628-phpapp01
8afoodanddigestion 120607150628-phpapp01
SUSAN MATHEW
7cenvironmentandfeedingrelationships 120607150331-phpapp02
7cenvironmentandfeedingrelationships 120607150331-phpapp02
SUSAN MATHEW
1. animal and plant cells v1.0
1. animal and plant cells v1.0
SUSAN MATHEW
Mais de SUSAN MATHEW
(14)
Vitaminsand minerals
Vitaminsand minerals
Special diets
Special diets
Ks4 plant responses
Ks4 plant responses
Ks4 inheritance
Ks4 inheritance
Ks4 chromosomes, genes and dna
Ks4 chromosomes, genes and dna
Ks4 cell division and fertilization
Ks4 cell division and fertilization
Immunity
Immunity
Cells
Cells
14. diet & nutrition
14. diet & nutrition
9cplantsandphotosynthesis 120607151019-phpapp01
9cplantsandphotosynthesis 120607151019-phpapp01
9ainheritanceandselection 120607151125-phpapp01
9ainheritanceandselection 120607151125-phpapp01
8afoodanddigestion 120607150628-phpapp01
8afoodanddigestion 120607150628-phpapp01
7cenvironmentandfeedingrelationships 120607150331-phpapp02
7cenvironmentandfeedingrelationships 120607150331-phpapp02
1. animal and plant cells v1.0
1. animal and plant cells v1.0
Último
The Philosophy of Science
The Philosophy of Science
University of Hertfordshire
Pests of cotton_Sucking_Pests_Dr.UPR.pdf
Pests of cotton_Sucking_Pests_Dr.UPR.pdf
PirithiRaju
Natural Polymer Based Nanomaterials
Natural Polymer Based Nanomaterials
AArockiyaNisha
PossibleEoarcheanRecordsoftheGeomagneticFieldPreservedintheIsuaSupracrustalBe...
PossibleEoarcheanRecordsoftheGeomagneticFieldPreservedintheIsuaSupracrustalBe...
Sérgio Sacani
CELL -Structural and Functional unit of life.pdf
CELL -Structural and Functional unit of life.pdf
Nistarini College, Purulia (W.B) India
Isotopic evidence of long-lived volcanism on Io
Isotopic evidence of long-lived volcanism on Io
Sérgio Sacani
Recombinant DNA technology (Immunological screening)
Recombinant DNA technology (Immunological screening)
PraveenaKalaiselvan1
DIFFERENCE IN BACK CROSS AND TEST CROSS
DIFFERENCE IN BACK CROSS AND TEST CROSS
LeenakshiTyagi
Chemistry 4th semester series (krishna).pdf
Chemistry 4th semester series (krishna).pdf
Sumit Kumar yadav
Forensic Biology & Its biological significance.pdf
Forensic Biology & Its biological significance.pdf
rohankumarsinghrore1
Discovery of an Accretion Streamer and a Slow Wide-angle Outflow around FUOri...
Discovery of an Accretion Streamer and a Slow Wide-angle Outflow around FUOri...
Sérgio Sacani
Disentangling the origin of chemical differences using GHOST
Disentangling the origin of chemical differences using GHOST
Sérgio Sacani
Nanoparticles synthesis and characterization
Nanoparticles synthesis and characterization
kaibalyasahoo82800
CALL ON ➥8923113531 🔝Call Girls Kesar Bagh Lucknow best Night Fun service 🪡
CALL ON ➥8923113531 🔝Call Girls Kesar Bagh Lucknow best Night Fun service 🪡
anilsa9823
fundamental of entomology all in one topics of entomology
fundamental of entomology all in one topics of entomology
DrAnita Sharma
Chromatin Structure | EUCHROMATIN | HETEROCHROMATIN
Chromatin Structure | EUCHROMATIN | HETEROCHROMATIN
sankalpkumarsahoo174
Lucknow 💋 Russian Call Girls Lucknow Finest Escorts Service 8923113531 Availa...
Lucknow 💋 Russian Call Girls Lucknow Finest Escorts Service 8923113531 Availa...
anilsa9823
Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b
Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b
Sérgio Sacani
9654467111 Call Girls In Raj Nagar Delhi Short 1500 Night 6000
9654467111 Call Girls In Raj Nagar Delhi Short 1500 Night 6000
Sapana Sha
Animal Communication- Auditory and Visual.pptx
Animal Communication- Auditory and Visual.pptx
UmerFayaz5
Último
(20)
The Philosophy of Science
The Philosophy of Science
Pests of cotton_Sucking_Pests_Dr.UPR.pdf
Pests of cotton_Sucking_Pests_Dr.UPR.pdf
Natural Polymer Based Nanomaterials
Natural Polymer Based Nanomaterials
PossibleEoarcheanRecordsoftheGeomagneticFieldPreservedintheIsuaSupracrustalBe...
PossibleEoarcheanRecordsoftheGeomagneticFieldPreservedintheIsuaSupracrustalBe...
CELL -Structural and Functional unit of life.pdf
CELL -Structural and Functional unit of life.pdf
Isotopic evidence of long-lived volcanism on Io
Isotopic evidence of long-lived volcanism on Io
Recombinant DNA technology (Immunological screening)
Recombinant DNA technology (Immunological screening)
DIFFERENCE IN BACK CROSS AND TEST CROSS
DIFFERENCE IN BACK CROSS AND TEST CROSS
Chemistry 4th semester series (krishna).pdf
Chemistry 4th semester series (krishna).pdf
Forensic Biology & Its biological significance.pdf
Forensic Biology & Its biological significance.pdf
Discovery of an Accretion Streamer and a Slow Wide-angle Outflow around FUOri...
Discovery of an Accretion Streamer and a Slow Wide-angle Outflow around FUOri...
Disentangling the origin of chemical differences using GHOST
Disentangling the origin of chemical differences using GHOST
Nanoparticles synthesis and characterization
Nanoparticles synthesis and characterization
CALL ON ➥8923113531 🔝Call Girls Kesar Bagh Lucknow best Night Fun service 🪡
CALL ON ➥8923113531 🔝Call Girls Kesar Bagh Lucknow best Night Fun service 🪡
fundamental of entomology all in one topics of entomology
fundamental of entomology all in one topics of entomology
Chromatin Structure | EUCHROMATIN | HETEROCHROMATIN
Chromatin Structure | EUCHROMATIN | HETEROCHROMATIN
Lucknow 💋 Russian Call Girls Lucknow Finest Escorts Service 8923113531 Availa...
Lucknow 💋 Russian Call Girls Lucknow Finest Escorts Service 8923113531 Availa...
Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b
Nightside clouds and disequilibrium chemistry on the hot Jupiter WASP-43b
9654467111 Call Girls In Raj Nagar Delhi Short 1500 Night 6000
9654467111 Call Girls In Raj Nagar Delhi Short 1500 Night 6000
Animal Communication- Auditory and Visual.pptx
Animal Communication- Auditory and Visual.pptx
8brespiration 120607150701-phpapp01
1.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 20051 of 26 KS3 Biology 8B Respiration
2.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 20052 of 26 8B Respiration Contents Releasing energy The circulation system Summary activities The breathing system Anaerobic respiration
3.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 20053 of 26 The body needs a constant supply of energy which comes from digested food. Glucose from digested carbohydrate is an important substance that contains stored chemical energy . How is digested food used by the body? When glucose reacts with oxygen a lot of energy is released. The release of energy from glucose is called… In the body’s cells, glucose and oxygen react to release energy . Some of this is released as heat and the rest is used by the cells. respiration
4.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 20054 of 26 from the digestive system from the breathing system useful!useful!waste product exhaled waste product exhaled This type of respiration is called aerobic respiration because energy is released with oxygen. Respiration is the process that the body uses to release energy from digested food (glucose): What is respiration? carbon dioxideglucose oxygen water energy How do the glucose and oxygen needed for aerobic respiration get to the all the body’s cells?
5.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 20055 of 26 Aerobic respiration: word equation activity
6.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 20056 of 26 When something burns, heat and light energy are released and carbon dioxide and water are also produced, so combustion is similar to respiration. Burning is the reaction between a fuel and oxygen. This reaction is called combustion: Comparing respiration and combustion carbon dioxidefuel oxygen water However, combustion is different because it is not a controlled reaction. Respiration is a controlled reaction which slowly releases energy from food in the body’s cells and the cells do not catch fire!
7.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 20057 of 26 8B Respiration Contents Releasing energy The circulation system Summary activities The breathing system Anaerobic respiration
8.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 20058 of 26 The dissolved food and oxygen needed for respiration are carried around the body by the circulation system. The circulation system includes the blood, blood vessels, the heart and the lungs. Which part of the circulation system actually carries dissolved food and oxygen to the body’s cells? The body’s transport system body’s cells body’s cells lungslungs
9.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 20059 of 26 The blood carries oxygen and dissolved food to all the body’s cells so that respiration can take place. Blood
10.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200510 of 26 The heart is made of very special muscle called cardiac muscle. This is because it has to keep beating for the whole of a person’s life! If you tried to do the same action repeatedly (like the heart does), your muscles would get tired and after a while stop working. Your beating heart For example, if you keep clenching and unclenching your hand, it will get tired and may even start to get cramp. Why is it important for respiration that the heart keeps beating?
11.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200511 of 26 What happens to the pulse rate whilst someone is running? The body needs to release more energy: so oxygen and glucose need to reach muscle cells quickly; so blood is pumped around the body faster; so the pulse is faster. Different types of activity What happens to the pulse rate whilst someone is sleeping? The body needs to release less energy: so oxygen and glucose need to reach muscle cells slowly; so blood is pumped around the body slower; so the pulse is slower.
12.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200512 of 26 8B Respiration Contents Releasing energy The circulation system Summary activities The breathing system Anaerobic respiration
13.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200513 of 26 The breathing system is used by the body to get the oxygen needed for respiration. It is also use to get rid of the waste product of respiration, the gas carbon dioxide. Breathing in and breathing out are separate processes in the body: What is breathing? Breathing in is also known as inhalation. When you inhale you breathe in air, including oxygen, into your lungs. Breathing out is also known as exhalation. When you exhale you breathe out the contents of our lungs and getting rid of the waste gas carbon dioxide.
14.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200514 of 26 Inhalation
15.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200515 of 26 In the lungs, oxygen travels to thousands of tiny air sacs called alveoli. These are covered with tiny blood vessels. The alveoli The alveoli give the lungs a huge surface area which is equal in size to the area of a tennis court!
16.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200516 of 26 Gas exchange takes place in the alveoli–oxygen is transferred into the blood and carbon dioxide moves out of the blood. Each alveolus has a thin wall so that gas exchange between Gas exchange the lungs and the blood can take place quickly.
17.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200517 of 26 Exhalation
18.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200518 of 26 What are the differences between inhaled and exhaled air? inhaled air nitrogen (78%) oxygen (21%) carbon dioxide (0.04%) other Comparing inhaled and exhaled air How could you test for the differences between inhaled and exhaled air? exhaled air nitrogen (78%) oxygen (17%) carbon dioxide (4%) other
19.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200519 of 26 8B Respiration Contents Releasing energy The circulation system Summary activities The breathing system Anaerobic respiration
20.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200520 of 26 When the body is able to supply the cells with the oxygen and glucose that they need, it carries out aerobicaerobic respiration. Anaerobic respiration When the body cannot supply the cells with the oxygen needed to break down glucose, then it has to carry out anaerobicanaerobic respiration. Energy is released without oxygen: Aerobic and anaerobic respiration Aerobic respiration carbon dioxideglucose oxygen water energy lactic acid energyglucose
21.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200521 of 26 When anaerobic respiration takes place, the lactic acid produced soaks the muscle cells and prevents muscles from doing their job. This causes fatigue and sometimes cramp. After activity that has lead to anaerobic respiration, the person involved pants and breathes heavily. This happens because they need lots of oxygen to get rid of lactic acid that has built up in their body. Not enough oxygen! lactic acid energyglucose carbon dioxide lactic acid oxygen water
22.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200522 of 26 Anaerobic respiration: word equation activity
23.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200523 of 26 8B Respiration Contents Releasing energy The circulation system Summary activities The breathing system Anaerobic respiration
24.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200524 of 26 Glossary aerobic – The type of respiration that occurs with oxygen. alveoli – Tiny air sacs in the lungs where gas exchange takes place. anaerobic – The type of respiration that occurs without oxygen. exhalation – The process of breathing out. glucose – A type of sugar that the body releases energy from during respiration. inhalation – The process of breathing in. respiration – The process that the body uses to release energy from digested food.
25.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200525 of 26 Anagrams
26.
© Boardworks Ltd
20041 of 20 © Boardworks Ltd 200526 of 26 Multiple-choice quiz
Notas do Editor
<number>
<number>
<number>
<number>
<number>
<number>
Baixar agora