IB DP Biology: SL复习笔记2.3.1 Proteins
Amino Acids & Polypeptides Proteins Proteins are polymers (and macromolecules) made of monomers called amino acids The sequence, type and number of the amino acids within a protein determines i...
IB DP Biology: SL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: SL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: SL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...
高含金量和认可度的STEM竞赛盘点，适合9-12年级高中生
STEM是当今最热的词汇，它囊括了当今社会发展最快的行业。但STEM领域的竞争也是日益激烈，美国顶尖大学STEM专业的录取率再次创下新低。 如何进入名校攻读STEM专业，在申请时向招生官证明自己的硬实力？参加STEM学...
IB DP Biology: SL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: SL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: SL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: SL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: SL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...
IB DP Biology: SL复习笔记2.1.1 Molecules
Molecular Biology The substances of life There are 118 elements in the Periodic Table Only the first 92 elements occur in Nature ; the rest are artificially-synthesised in laboratories and are very...
IB DP Biology: SL复习笔记1.4.4 Skills: Cell Division
Mitotic Phases: Identification Cells undergoing different stages of the cell cycle can be identified using photomicrographs taken from microscope slides Cells undergoing certain stages of the cell ...
