Edexcel IGCSE Biology: Double Science 复习笔记 2.5.1 Photosynthesis Photosynthesis Theory Photosynthesis is an endothermic reaction in which energy from sunlight is transferred to the chloro...
Edexcel IGCSE Biology: Double Science 复习笔记 2.4.5 Active Transport Active Transport Theory Active transport is: The movement of particles through a cell membrane from a region of l...
Edexcel IGCSE Biology: Double Science 复习笔记 2.4.4 Practical: Osmosis Practical: Factors that Influence Osmosis Osmosis is the diffusion of water molecules from a dilute solution (high con...
Edexcel IGCSE Biology: Double Science 复习笔记 2.4.3 Osmosis Osmosis Theory All cells are surrounded by a cell membrane which is partially permeable Water can move in and out of cells by osm...
Edexcel IGCSE Biology: Double Science 复习笔记 2.4.2 Practical: Diffusion Practical: Factors that Influence Diffusion Diffusion is the movement of molecules from a region of higher concentra...
Edexcel IGCSE Biology: Double Science 复习笔记 2.4.1 Diffusion Diffusion Theory Diffusion is the movement of molecules from a region of its higher concentration to a region of its lower conc...
Edexcel IGCSE Biology: Double Science 复习笔记 2.3.4 Practical: Enzymes & Temperature Practical: Enzymes & Temperature Amylase is an enzyme that digests starch (a polysaccharide of g...
Edexcel IGCSE Biology: Double Science 复习笔记 2.3.3 Enzymes Enzymes as Biological Catalysts Enzymes Enzymes are proteins that act as biological catalysts to speed up the rate of a chemical ...
Edexcel IGCSE Biology: Double Science 复习笔记 2.3.2 Practical: Food Tests Practical: Food Tests Preparing a sample Before you can carry out any of the food tests described below, you may ne...
