Unit 9 H Gas Exchange
CIE
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Class notes
A-Level Biology Topic 9: Gas Exchange | Lungs & Ventilation Simplified
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---23November 20252025/2026
- Includes mechanics of breathing, alveoli structure, diffusion gradients, and adaptations for efficiency with easy diagrams.
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$8.99 More Info
areeshamushtaq311
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Class notes
CIE AS Biology - Human Gas Exchange (Topic 9 Summary | 2024 Syllabus)
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---5June 20252024/2025
- Concise and complete notes for CIE AS Biology Topic 8 (Part 1): Gas Exchange in Humans. Includes: 
	•	Structure of the lungs and alveoli 
	•	Ventilation mechanism (inhalation/exhalation) 
	•	Adaptations for efficient gas exchange 
	•	Role of diaphragm and intercostal muscles 
	•	Explanation of diffusion gradients and gas transport 
	•	Labeled diagrams and key exam points 
Based on the 2024 CIE 9700 syllabus. Ideal for Paper 2 and Paper 3 revision.
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$4.80 More Info
albagutierrez
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Package deal
AS Biology Notes Covering ALL Spec Points
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---10July 2023
- Hand-made digital notes and diagrams on the entirety of the AS Level Course present in CIE papers 1, 2, 3
Topic written spec-by-spec point to ensure all content is covered
Compatible with all exam boards but predominantly CIE
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$22.13 More Info
danwilliams3066
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Package deal
AS BIOLOGY SUMMARY UNIT 1+4TO11
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---9February 2023
- AS BIOLOGY SUMMARY 9700 CIE, TOPICS 1+4+5+6+7+8+9+10+11. THIS SUMMARY GOT ME AN A IN PAPER 1 AND PAPER 2. EXTENSIVE INFORMATION CHECKED BY THE SYLLABUS.
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$37.25 More Info
pabloesteban
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Summary
Summary Unit 9- Gas Exchange (9700) Biology
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---8February 20232021/2022
- THE HUMAN GAS EXCHANGE SYSTEM, Distribution of Tissues in the Gas exchange system, Gas exchange processes, Features of the alveoli:, Structure & functions. This contains extensive information that got me an A in paper 1 and paper 2.
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$4.80 More Info
pabloesteban