Companion PDF worksheet for Edexcel IGCSE Biology Lecture 18 - Gas Exchange in Plants. Contains short answer questions, an activity requiring lateral thinking and exam-style questions.
Specification Point 2.40B - Understand the role of diffusion in gas exchange.
Specification Point 2.41B - Understand gas exchange in relation to respiration and photosynthesis.
Specification Point 2.42B - Understand how the structure of the leaf is adapted for gas exchange.
Specification Point 2.43B - Describe the role of stomata in gas exchange.
Complete set of Chapter 3 Worksheets are available.
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