Edexcel IGCSE Maths复习笔记 1.3.2 HCFs & LCMs
Edexcel IGCSE Maths复习笔记 1.3.2 HCFs & LCMs What are Factors & Multiples? Factors are numbers (or expressions) which divide into another number exactly e.g. 3 is a factor of 18 as
AQA A Level Biology复习笔记1.6.1 The Structure of ATP
The Structure of ATP All organisms require a constant supply of energy to maintain their cells and stay alive This energy is required: In anabolic reactions – building larger molecules from ...
AQA A Level Biology复习笔记1.5.1 The Function of DNA & RNA
The Function of DNA & RNA Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are both types of nucleic acid DNA and RNA are both found in all living cells DNA and RNA are both needed to bui...
Edexcel IGCSE Maths复习笔记 1.3.1 Prime Factors
Edexcel IGCSE Maths复习笔记 1.3.1 Prime Factors What are prime factors? Factors are things that are multiplied together Prime numbers are numbers which can only be divided by themselves and 1 The p...
AQA A LEVEL BIOLOGY复习笔记1.4.1 Many Proteins are Enzymes
Enzymes as Proteins Enzymes are biological catalysts ‘Biological’ because they function in living systems ‘Catalysts’ because they speed up the rate of chemical reactions without being used up or c...
Edexcel IGCSE Maths复习笔记1.2.1 Recurring Decimals
Edexcel IGCSE Maths复习笔记1.2.1 Recurring Decimals What are recurring decimals? A rational number is any number that can be written as an integer (whole number) divided by another integer When you...
AQA A LEVEL BIOLOGY复习笔记1.3.1 Amino Acids & the Peptide Bond
Amino Acids & the Peptide Bond Proteins Proteins are polymers (and macromolecules) made of monomers called amino acids The sequence, type and number of the amino acids within a protein determin...
Edexcel IGCSE Maths复习笔记1.1.3 Multiplying & Dividing Fractions
Edexcel IGCSE Maths复习笔记1.1.3 Multiplying & Dividing Fractions Dealing with mixed numbers Always turn Mixed Numbers into Top Heavy Fractions before doing calculations Dividing fractions Neve...
AQA A LEVEL BIOLOGY复习笔记1.2.1 Lipids
Lipids Macromolecules which contain carbon, hydrogen and oxygen atoms. However, unlike carbohydrates lipids contain a lower proportion of oxygen Non-polar and hydrophobic (insoluble in water) There...
