GCSE Biology - Specialised Exchange Surfaces (2026/27 exams)
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** WHAT'S COVERED **
1. Definition of specialised exchange surfaces.
2. Examples of specialised exchange surfaces in humans and plants.
3. The five main features common to specialised exchange surfaces that maximise rate of diffusion.
** CHAPTERS **
0:00 Intro: What are Specialised Exchange Surfaces?
0:30 Examples in Humans
1:13 Examples in Plants
1:48 Common Features Introduction
1:55 Feature 1: Large Surface Area
2:30 Feature 2: Thin Surfaces
3:01 Feature 3: Permeability
3:16 Feature 4: Good Blood Supply
3:57 Feature 5: Good Supply of External Medium
4:41 Recap: 5 Main Features
** PLAYLISTS **
• GCSE Maths (9-1)
• GCSE Biology (9-1)
• GCSE Chemistry (9-1)
• GCSE Physics (9-1)
• A-Level Biology
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