2022英美大学IB分数要求盘点！热门科目7分率如何？
虽然2022年5月IB官方取消了华东地区学生的所有考试，但最终上海、江苏、浙江及安徽的IB学生还是采用了免考试路线度过了这突如其来的“难关”： 非考试路径 评定标准 1学生提交的校内作业coursework 2老师给定可保...
IB DP Biology: HL复习笔记2.2.5 Skills: Calculating BMI
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...
IB DP Biology: HL复习笔记2.2.4 Skills: Visualising Carbohydrates
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...
IB DP Biology: HL复习笔记2.2.3 Lipids
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...
IB DP Biology: HL复习笔记2.2.2 Fatty Acids
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 ...
IB DP Biology: HL复习笔记2.2.1 Carbohydrates
Formation of Sugars Monosaccharides can join together via condensation reactions to form disaccharides A condensation reaction is one in which two molecules join together via the formation of a new...
IB DP Biology: HL复习笔记2.1.4 Water
Properties of Water NOS: Use theories to explain natural phenomena; the theory that hydrogen bonds form between water molecules explains the properties of water When scientists observe natural phen...
IB DP Biology: HL复习笔记2.1.3 Hydrogen Bonds
Hydrogen Bonds Hydrogen bonding plays an important role between many biological molecules Some key functions include: Dissolving of solutes in water The cohesion and adhesion of water molecules The...
IB DP Biology: HL复习笔记2.1.2 Metabolism
Metabolism Metabolism is a catch-all term used to describe all the chemical reactions that take place within cells and organisms Metabolism can be thought of as the chemical reactions of life The m...
