Body Mass Index Calculations Body Mass Index (BMI) is a?rough and ready measure?of a person’s mass in relation to their height The calculation of BMI is as follows A BMI below 18.5 is considered?un...
Molecular Visualisation: Carbohydrates Online learning tools?exist that can provide?visualisations?of large biomolecules Mouse functions can?zoom?and?rotate?molecules Many of these make use of?JMol...
Long Term Storage Lipids are excellent storage compounds Lipid macromolecules, like carbohydrates, contain?carbon, hydrogen?and?oxygen?atoms However, unlike carbohydrates, lipids contain?a low prop...
Fatty Acids: Types Triglycerides are a form of lipid, made up of one molecule of?glycerol?with three?fatty acids?attached to it These fatty acids have?long hydrocarbon ‘tails’ Fatty acids occur in?...
Edexcel IGCSE Geography 復習筆記 4.3.3 Management of Energy Sources Sustainable Energy Management Sustainable?energy management is essential if future generations are to have the energy resources t...
Edexcel IGCSE Geography 復習筆記 4.3.2 Types of Energy Sources Non-Renewable Energy Non-renewable energy are energy sources which are?finite?and will eventually run out. They include: Gas Oil Coal ...
Edexcel IGCSE Geography 復習筆記 4.3.1 Energy Demand and Production Energy Demand Global energy demand has rapidly increased. Population growth and development are the two main causes of the increa...
Edexcel IGCSE Geography 復習筆記 4.2.3 Relationship of Population on Resources Population & Resources Economic activities all involve the use of resources and energy The rate at which resources...
Edexcel IGCSE Geography 復習筆記 4.2.2 Informal Employment Causes of Informal Employment Informal employment?is any employment which is unregulated and unofficial It is estimated that more than 60%...
