Edexcel IGCSE Biology 复习笔记 2.3.3 Enzymes
Edexcel IGCSE Biology 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 reaction without being ...
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Edexcel IGCSE Biology 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 reaction without being ...
Edexcel IGCSE Biology 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 need to prepare a ...
Edexcel IGCSE Biology 复习笔记 2.3.1 Carbohydrates, Fats & Proteins Chemical Elements Most of the molecules in living organisms fall into three categories: carbohydrates, proteins and li...
Edexcel IGCSE Biology 复习笔记 2.2.3 Stem Cells Stem Cells A stem cell is an undifferentiated cell of an organism that is capable of dividing to produce many more cells of the same type (undifferen...
Edexcel IGCSE Biology 复习笔记 2.2.2 Specialised Cells Cell Differentiation & Specialised Cells The structural differences between different types of cells enables them to perform specif...
Edexcel IGCSE Biology 复习笔记 2.2.1 Cell Structure Cell Structures Eukaryotic cells have subcellular structures contained within their cytoplasm Each cellular structure carries out a partic...
Edexcel IGCSE Biology 复习笔记 2.1.1 Levels of Organisation Cells, Tissues, Organs & Organ Systems Cells are the basic building blocks of all living organisms Unicellular organisms are m...
Edexcel IGCSE Biology 复习笔记 1.2.5 Pathogens Types of Pathogen A pathogen is any microorganism that causes disease in another organism (e.g. in plants or animals) Many microorganisms are pathogen...
Edexcel IGCSE Biology 复习笔记 1.2.4 Prokaryotic Organisms Prokaryotes All living organisms can be grouped or ‘classified’ using a classification system that consists of five kingdoms. These...
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