Edexcel IGCSE Biology 復習筆記 2.3.1 Carbohydrates, Fats & Proteins
Edexcel IGCSE Biology 復習筆記 2.3.1 Carbohydrates, Fats & Proteins Chemical Elements Most of the molecules in living organisms fall into three categories:?carbohydrates, proteins and li...
AQA A Level Biology復習筆記5.4.4 Fertilisers
The Use of Natural & Artificial Fertilisers When organisms in natural ecosystems?die?or produce?waste, the waste and dead matter?decompose This decomposition is carried out by?saprobiont...
Edexcel IGCSE Biology 復習筆記 2.2.3 Stem Cells
Edexcel IGCSE Biology 復習筆記 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...
AQA A Level Biology復習筆記5.4.3 Microorganisms Role in Recycling Minerals
Microorganisms Role in Recycling Minerals In natural ecosystems,?nutrients?(such as nitrogen and phosphorus) are?recycled?through food webs For example, these nutrients get passed on from?pr...
Edexcel IGCSE Biology 復習筆記 2.2.2 Specialised Cells
Edexcel IGCSE Biology 復習筆記 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 復習筆記 2.2.1 Cell Structure
Edexcel IGCSE Biology 復習筆記 2.2.1 Cell Structure Cell Structures Eukaryotic cells have?subcellular structures?contained within their cytoplasm Each cellular structure carries out a?partic...
AQA A Level Biology復習筆記5.4.2 Practical Skill: Investigate the Effect of Minerals on Plant Growth
Practical Skill: Investigate the Effect of Minerals on Plant Growth Photosynthesis produces carbohydrates Carbohydrates contain the chemical elements carbon, hydrogen and oxygen, which can b...
Edexcel IGCSE Biology 復習筆記 1.2.5 Pathogens
Edexcel IGCSE Biology 復習筆記 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...
AQA A Level Biology復習筆記5.3.10 The Effect of Farming
How Production is Affected by Farming Practices Farming practices can?increase?the?efficiency of energy transfer?in order to increase the total amount of energy available for?human consumpti...
AQA A Level Biology復習筆記5.3.9 Percentage Yield
Maths Skill: Calculating Percentage Yield Farmers use various strategies to increase the?yield?of their crops or livestock. These strategies include: Reducing energy losses?from crops to?oth...
Edexcel IGCSE Biology 復習筆記 1.2.4 Prokaryotic Organisms
Edexcel IGCSE Biology 復習筆記 1.2.4 Prokaryotic Organisms Prokaryotes All living organisms can be grouped or ‘classified’ using a classification system that consists of?five kingdoms. These...
AQA A Level Biology復習筆記5.3.8 Calculating Productivity & Efficiency
Maths Skills: Calculating Productivity and Efficiency within Ecosystems Given the appropriate data, it is possible to calculate the?net productivity?of?producers?or?consumers?and the?efficie...
