IGCSE Biology - 2g Gas Exchange - Flowering Plants

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019


Section 2g Gas Exchange - Flowering Plants


  • 2.40B understand the role of diffusion in gas exchange
  • 2.41B understand gas exchange (of carbon dioxide and oxygen) in relation to respiration and photosynthesis
  • 2.42B understand how the structure of the leaf is adapted for gas exchange
  • 2.43B describe the role of stomata in gas exchange
  • 2.44B understand how respiration continues during the day and night, but that thenet exchange of carbon dioxide and oxygen depends on the intensity of light
  • 2.45B practical: investigate the effect of light


New and updated resource for IGCSE 9-1- More practical pages, updated design, concept checker and exam style question for each topic.