Edexcel IGCSE Biology: Double Science 复习笔记 2.4.3 Osmosis
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
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
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
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
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
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...
Edexcel IGCSE Biology: Double Science 复习笔记 2.3.1 Carbohydrates, Fats & Proteins
Edexcel IGCSE Biology: Double Science 复习笔记 2.3.1 Carbohydrates, Fats & Proteins Chemical Elements Most of the molecules in living organisms fall into three categories: carbohydrates,...
Edexcel IGCSE Biology: Double Science 复习笔记 2.2.2 Specialised Cells
Edexcel IGCSE Biology: Double Science 复习笔记 2.2.2 Specialised Cells Cell Differentiation & Specialised Cells The structural differences between different types of cells enables them t...
Edexcel IGCSE Biology: Double Science 复习笔记 2.2.1 Cell Structure
Edexcel IGCSE Biology: Double Science 复习笔记 2.2.1 Cell Structure Cell Structures Eukaryotic cells have subcellular structures contained within their cytoplasm Each cellular structure carr...
