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Gas Exchange (Core) - Education, Early Learning and … · 6.4.1 Distinguish between ventilation,...
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Gas Exchange (Core) Stephen Taylor i-Biology.net
Transcript of Gas Exchange (Core) - Education, Early Learning and … · 6.4.1 Distinguish between ventilation,...
Gas Exchange (Core) Stephen Taylor
i-Biologynet
Assessment Statements Obj
641 Distinguish between ventilation respiration and gas exchange 2
642 Explain the need for a ventilation system 3
643 Describe the features of alveoli that adapt them to gas exchange 2
644 Draw and label a diagram of the ventilation system including trachea lungs bronchi bronchioles and alveoli
1
645 Explain the mechanism of ventilation of the lungs in terms of volume and pressure changes caused by the internal and external intercostal muscles the diaphragm and abdominal muscles
3
Assessment statements from Online IB Biology Subject Guide Command terms httpi-biologynetibdpbiocommand-terms
What connections can you make with other topics
Gas Exchange
MrT sayshellip I pity the fool
who thinks breathing is
respiration
httpwwwlastfmmusicMrT+images27372765
Why do we need a ventilation system We are large organisms Oxygen cannot diffuse into all our cells directly from the air nor can waste products be directly ejected from the body We have specialised organ systems which are efficient but need delivery of nutrients and removal of waste The ventilation system ensures the blood can be the medium for this
We are land-borne Gases need moist surfaces (membranes) in order to diffuse Our lungs are moist membranes allowing oxygen to diffuse into the blood and carbon dioxide to diffuse out
The ventilation system maintains a large concentration gradient between the alveoli and the blood The constant flow of past the alveoli brings blood with a high CO2 concentration and low O2 concentration Breathing out keeps the CO2 concentration in the alveoli low so it diffuses out of the blood Breathing in keeps O2 concentration in the alveoli high so it diffuses into the blood
Diagram from httpwwwsciencequiznetjcsciencejcbiologygapfillingbreathingsystemhtm
httphigheredmcgraw-hillcomsites0072495855student_view0chapter25animation__gas_exchange_during_respirationhtml
httpwwwwisc-onlinecomobjectsViewObjectaspxID=AP15104
Which process(es) of membrane transport are being used in gas exchange at the membranes of the alveoli
httpwwwfootprints-sciencecoukalveolihtm
Breathing Exercises ndash desk yoga (itrsquos IBDP after all letrsquos bust some stress) 1 Simple exercises Keep your neck straight
bull Rotate shoulders forwards then backwards 5 times each bull Bend your neck to touch your head to your shoulder left then right 5 times each bull Tilt your head forward touching chest then backward 5 times each
2 Breathing observation bull Close your eyes breathe normally bull ldquoObserverdquo the breathing process
3 Pranayama bull Stand up bull Take gentle deep breaths bull Feel the air moving in and out trying to control its flow bull Think happy thoughts about graduation Breathing exercises from httpwwwhealthandyogacomhtmlnewsexercisehtml
Image 11750 Foot Yoga Moment httpwwwflickrcomphotos94833286N002838289483 Found on flickrccnet
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4Good Click here for more information about Biology4Good charity donations
IBiologyStephen
Assessment Statements Obj
641 Distinguish between ventilation respiration and gas exchange 2
642 Explain the need for a ventilation system 3
643 Describe the features of alveoli that adapt them to gas exchange 2
644 Draw and label a diagram of the ventilation system including trachea lungs bronchi bronchioles and alveoli
1
645 Explain the mechanism of ventilation of the lungs in terms of volume and pressure changes caused by the internal and external intercostal muscles the diaphragm and abdominal muscles
3
Assessment statements from Online IB Biology Subject Guide Command terms httpi-biologynetibdpbiocommand-terms
What connections can you make with other topics
Gas Exchange
MrT sayshellip I pity the fool
who thinks breathing is
respiration
httpwwwlastfmmusicMrT+images27372765
Why do we need a ventilation system We are large organisms Oxygen cannot diffuse into all our cells directly from the air nor can waste products be directly ejected from the body We have specialised organ systems which are efficient but need delivery of nutrients and removal of waste The ventilation system ensures the blood can be the medium for this
We are land-borne Gases need moist surfaces (membranes) in order to diffuse Our lungs are moist membranes allowing oxygen to diffuse into the blood and carbon dioxide to diffuse out
The ventilation system maintains a large concentration gradient between the alveoli and the blood The constant flow of past the alveoli brings blood with a high CO2 concentration and low O2 concentration Breathing out keeps the CO2 concentration in the alveoli low so it diffuses out of the blood Breathing in keeps O2 concentration in the alveoli high so it diffuses into the blood
Diagram from httpwwwsciencequiznetjcsciencejcbiologygapfillingbreathingsystemhtm
httphigheredmcgraw-hillcomsites0072495855student_view0chapter25animation__gas_exchange_during_respirationhtml
httpwwwwisc-onlinecomobjectsViewObjectaspxID=AP15104
Which process(es) of membrane transport are being used in gas exchange at the membranes of the alveoli
httpwwwfootprints-sciencecoukalveolihtm
Breathing Exercises ndash desk yoga (itrsquos IBDP after all letrsquos bust some stress) 1 Simple exercises Keep your neck straight
bull Rotate shoulders forwards then backwards 5 times each bull Bend your neck to touch your head to your shoulder left then right 5 times each bull Tilt your head forward touching chest then backward 5 times each
2 Breathing observation bull Close your eyes breathe normally bull ldquoObserverdquo the breathing process
3 Pranayama bull Stand up bull Take gentle deep breaths bull Feel the air moving in and out trying to control its flow bull Think happy thoughts about graduation Breathing exercises from httpwwwhealthandyogacomhtmlnewsexercisehtml
Image 11750 Foot Yoga Moment httpwwwflickrcomphotos94833286N002838289483 Found on flickrccnet
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4Good Click here for more information about Biology4Good charity donations
IBiologyStephen
MrT sayshellip I pity the fool
who thinks breathing is
respiration
httpwwwlastfmmusicMrT+images27372765
Why do we need a ventilation system We are large organisms Oxygen cannot diffuse into all our cells directly from the air nor can waste products be directly ejected from the body We have specialised organ systems which are efficient but need delivery of nutrients and removal of waste The ventilation system ensures the blood can be the medium for this
We are land-borne Gases need moist surfaces (membranes) in order to diffuse Our lungs are moist membranes allowing oxygen to diffuse into the blood and carbon dioxide to diffuse out
The ventilation system maintains a large concentration gradient between the alveoli and the blood The constant flow of past the alveoli brings blood with a high CO2 concentration and low O2 concentration Breathing out keeps the CO2 concentration in the alveoli low so it diffuses out of the blood Breathing in keeps O2 concentration in the alveoli high so it diffuses into the blood
Diagram from httpwwwsciencequiznetjcsciencejcbiologygapfillingbreathingsystemhtm
httphigheredmcgraw-hillcomsites0072495855student_view0chapter25animation__gas_exchange_during_respirationhtml
httpwwwwisc-onlinecomobjectsViewObjectaspxID=AP15104
Which process(es) of membrane transport are being used in gas exchange at the membranes of the alveoli
httpwwwfootprints-sciencecoukalveolihtm
Breathing Exercises ndash desk yoga (itrsquos IBDP after all letrsquos bust some stress) 1 Simple exercises Keep your neck straight
bull Rotate shoulders forwards then backwards 5 times each bull Bend your neck to touch your head to your shoulder left then right 5 times each bull Tilt your head forward touching chest then backward 5 times each
2 Breathing observation bull Close your eyes breathe normally bull ldquoObserverdquo the breathing process
3 Pranayama bull Stand up bull Take gentle deep breaths bull Feel the air moving in and out trying to control its flow bull Think happy thoughts about graduation Breathing exercises from httpwwwhealthandyogacomhtmlnewsexercisehtml
Image 11750 Foot Yoga Moment httpwwwflickrcomphotos94833286N002838289483 Found on flickrccnet
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4Good Click here for more information about Biology4Good charity donations
IBiologyStephen
Why do we need a ventilation system We are large organisms Oxygen cannot diffuse into all our cells directly from the air nor can waste products be directly ejected from the body We have specialised organ systems which are efficient but need delivery of nutrients and removal of waste The ventilation system ensures the blood can be the medium for this
We are land-borne Gases need moist surfaces (membranes) in order to diffuse Our lungs are moist membranes allowing oxygen to diffuse into the blood and carbon dioxide to diffuse out
The ventilation system maintains a large concentration gradient between the alveoli and the blood The constant flow of past the alveoli brings blood with a high CO2 concentration and low O2 concentration Breathing out keeps the CO2 concentration in the alveoli low so it diffuses out of the blood Breathing in keeps O2 concentration in the alveoli high so it diffuses into the blood
Diagram from httpwwwsciencequiznetjcsciencejcbiologygapfillingbreathingsystemhtm
httphigheredmcgraw-hillcomsites0072495855student_view0chapter25animation__gas_exchange_during_respirationhtml
httpwwwwisc-onlinecomobjectsViewObjectaspxID=AP15104
Which process(es) of membrane transport are being used in gas exchange at the membranes of the alveoli
httpwwwfootprints-sciencecoukalveolihtm
Breathing Exercises ndash desk yoga (itrsquos IBDP after all letrsquos bust some stress) 1 Simple exercises Keep your neck straight
bull Rotate shoulders forwards then backwards 5 times each bull Bend your neck to touch your head to your shoulder left then right 5 times each bull Tilt your head forward touching chest then backward 5 times each
2 Breathing observation bull Close your eyes breathe normally bull ldquoObserverdquo the breathing process
3 Pranayama bull Stand up bull Take gentle deep breaths bull Feel the air moving in and out trying to control its flow bull Think happy thoughts about graduation Breathing exercises from httpwwwhealthandyogacomhtmlnewsexercisehtml
Image 11750 Foot Yoga Moment httpwwwflickrcomphotos94833286N002838289483 Found on flickrccnet
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4Good Click here for more information about Biology4Good charity donations
IBiologyStephen
httphigheredmcgraw-hillcomsites0072495855student_view0chapter25animation__gas_exchange_during_respirationhtml
httpwwwwisc-onlinecomobjectsViewObjectaspxID=AP15104
Which process(es) of membrane transport are being used in gas exchange at the membranes of the alveoli
httpwwwfootprints-sciencecoukalveolihtm
Breathing Exercises ndash desk yoga (itrsquos IBDP after all letrsquos bust some stress) 1 Simple exercises Keep your neck straight
bull Rotate shoulders forwards then backwards 5 times each bull Bend your neck to touch your head to your shoulder left then right 5 times each bull Tilt your head forward touching chest then backward 5 times each
2 Breathing observation bull Close your eyes breathe normally bull ldquoObserverdquo the breathing process
3 Pranayama bull Stand up bull Take gentle deep breaths bull Feel the air moving in and out trying to control its flow bull Think happy thoughts about graduation Breathing exercises from httpwwwhealthandyogacomhtmlnewsexercisehtml
Image 11750 Foot Yoga Moment httpwwwflickrcomphotos94833286N002838289483 Found on flickrccnet
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4Good Click here for more information about Biology4Good charity donations
IBiologyStephen
httpwwwwisc-onlinecomobjectsViewObjectaspxID=AP15104
Which process(es) of membrane transport are being used in gas exchange at the membranes of the alveoli
httpwwwfootprints-sciencecoukalveolihtm
Breathing Exercises ndash desk yoga (itrsquos IBDP after all letrsquos bust some stress) 1 Simple exercises Keep your neck straight
bull Rotate shoulders forwards then backwards 5 times each bull Bend your neck to touch your head to your shoulder left then right 5 times each bull Tilt your head forward touching chest then backward 5 times each
2 Breathing observation bull Close your eyes breathe normally bull ldquoObserverdquo the breathing process
3 Pranayama bull Stand up bull Take gentle deep breaths bull Feel the air moving in and out trying to control its flow bull Think happy thoughts about graduation Breathing exercises from httpwwwhealthandyogacomhtmlnewsexercisehtml
Image 11750 Foot Yoga Moment httpwwwflickrcomphotos94833286N002838289483 Found on flickrccnet
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4Good Click here for more information about Biology4Good charity donations
IBiologyStephen
Which process(es) of membrane transport are being used in gas exchange at the membranes of the alveoli
httpwwwfootprints-sciencecoukalveolihtm
Breathing Exercises ndash desk yoga (itrsquos IBDP after all letrsquos bust some stress) 1 Simple exercises Keep your neck straight
bull Rotate shoulders forwards then backwards 5 times each bull Bend your neck to touch your head to your shoulder left then right 5 times each bull Tilt your head forward touching chest then backward 5 times each
2 Breathing observation bull Close your eyes breathe normally bull ldquoObserverdquo the breathing process
3 Pranayama bull Stand up bull Take gentle deep breaths bull Feel the air moving in and out trying to control its flow bull Think happy thoughts about graduation Breathing exercises from httpwwwhealthandyogacomhtmlnewsexercisehtml
Image 11750 Foot Yoga Moment httpwwwflickrcomphotos94833286N002838289483 Found on flickrccnet
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4Good Click here for more information about Biology4Good charity donations
IBiologyStephen
Breathing Exercises ndash desk yoga (itrsquos IBDP after all letrsquos bust some stress) 1 Simple exercises Keep your neck straight
bull Rotate shoulders forwards then backwards 5 times each bull Bend your neck to touch your head to your shoulder left then right 5 times each bull Tilt your head forward touching chest then backward 5 times each
2 Breathing observation bull Close your eyes breathe normally bull ldquoObserverdquo the breathing process
3 Pranayama bull Stand up bull Take gentle deep breaths bull Feel the air moving in and out trying to control its flow bull Think happy thoughts about graduation Breathing exercises from httpwwwhealthandyogacomhtmlnewsexercisehtml
Image 11750 Foot Yoga Moment httpwwwflickrcomphotos94833286N002838289483 Found on flickrccnet
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4Good Click here for more information about Biology4Good charity donations
IBiologyStephen
This is a Creative Commons presentation It may be linked and embedded but not sold or re-hosted
Please consider a donation to charity via Biology4Good Click here for more information about Biology4Good charity donations
IBiologyStephen
