This lesson can be purchased as part of the IB Complete course bundle (first exams 2025) at a heavily discounted price, formed of 40 fully resourced lessons, end of topic exams and student checklists. It can be found here
This PowerPoint contains everything you need to teach the B3.1 Gas exchange in the new IB Biology specification.
**YouTube video is a preview of the full resource (does not include all slides)
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This Powerpoint consists of 90 slides and contains the followings:
All the information ( HL) the IB have included in the new spec.
Exam tips
Clear diagrams
Student research tasks
Clearly identified HL and SL content
Student checklist
Summary
The following content is included:
B3.1.1: Outline the need for gas exchange in living organisms.
B3.1.2: Describe properties of gas-exchange surfaces.
B3.1.3: Explain how concentration gradients are maintained at exchange surfaces in animals.
B3.1.4: Describe the adaptations of mammalian lungs for gas exchange.
B3.1.5: Explain the process of ventilation.
B3.1.6: Determine measurements of lung volumes.
B3.1.7: Outline the adaptations of leaves for gas exchange.
B3.1.8: Draw and label a plan diagram to show the distribution of tissues in a transverse section of a dicotyledonous leaf.
B3.1.9: Outline the process of transpiration and the factors that affect the rate of transpiration.
B3.1.10: Determine stomatal density.
B3.1.11: Outline the adaptations of foetal and adult haemoglobin for the transport of oxygen.
B3.1.12: Explain the Bohr shift and the benefits for respiring tissues.
B3.1.13: Analyse and explain oxygen dissociation curves.
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This bundle contains all the resources you need to teach unit B Form and Function: * B1 (Carbohydrates, lipids and proteins) * B2 (Membranes and transport, organelles and compartmentalisation and cell specialisation) * B3 (Gas exchange, transport and motility) * B4 (Adaptations to environment and Ecological niches) As part of the new IB specification. This bundle contains: * Over 600 slides which cover all the content stipulated by the IB. * Student questions with answers * Checklist * Clear diagrams * Research tasks * Questions and answers * **Now includes 10 end of unit assessments, which include MCQs, short answer questions and data based questions, with a clear mark scheme** This is ready to teach as soon as you download it!!
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IB Biology B3: Organisms- All lessons (first exams in 2025)
This bundle contains all the resources you need to teach B3 as part of the new IB Biology specification: **Gas Exchange, Transport and Muscle & Motility** This bundle contains: Over 260 slides which cover all the content stipulated by the IB. Student questions with answers Clear notes Checklist Clear diagrams Reserch tasks Quesitons and answers **This is ready to teach as soon as you download it!! **
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