Edexcel IGCSE Biology 复习笔记 2.8.2 Transport Systems in Flowering Plants Xylem The roots, stem and leaves form a plant organ system for the transport of substances around the plant Plants ...
Edexcel IGCSE Biology 复习笔记 2.8.1 The Requirement for Transport Systems Unicellular Organisms In order for any organism to function properly, it needs to exchange substances, such as food...
Edexcel IGCSE Biology 复习笔记 2.7.7 Practical: The Effect of Exercise on Breathing Practical: The Effect of Exercise on Breathing Exercise causes the frequency of breathing to increase in o...
Edexcel IGCSE Biology 复习笔记 2.7.6 Smoking & the Human Gas Exchange System Smoking & the Gas Exchange System Smoking causes chronic obstructive lung disease (COPD), coronary heart ...
Edexcel IGCSE Biology 复习笔记 2.7.5 Human Gas Exchange System Structure of the Breathing System The lungs are the gas exchange surface in humans All gas exchange surfaces have features in common w...
Edexcel IGCSE Biology 复习笔记 2.7.4 Practical: The Effect of Light on Gas Exchange in Plants Practical: The Effect of Light on Gas Exchange in Plants Apparatus Boiling tubes Cotton wool Alu...
Edexcel IGCSE Biology 复习笔记 2.7.3 Plants: Gas Exchange in Photosynthesis & Respiration Gas Exchange: Photosynthesis & Respiration The processes of respiration and photosynthesis b...
Edexcel IGCSE Biology 复习笔记 2.7.2 Leaf Structure Leaf Structure The structure of the leaf is adapted to carry out both photosynthesis and gas exchange The different cell types (palisade m...
Edexcel IGCSE Biology 复习笔记 2.7.1 Diffusion in Gas Exchange Diffusion in Gas Exchange Diffusion is the movement of molecules from a region of its higher concentration to a region of its l...
