Edexcel IGCSE Maths 复习笔记 2.2.2 Simple Factorisation
Edexcel IGCSE Maths 复习笔记 2.2.2 Simple Factorisation What is simple factorisation? Simple Factorisation is the opposite of Expanding One Bracket Beware of minus signs Remember the basic rules: “...
AQA A Level Biology复习笔记1.4.6 Maths Skill: Using a Tangent to Find Initial Rate of Reaction
Maths Skill: Using a Tangent to Find Initial Rate of Reaction For linear graphs (i.e. graphs with a straight-line), the gradient is the same throughout This makes it easy to calculate the ra...
AQA A Level Biology复习笔记1.4.5 Maths Skill: Drawing a Graph for Enzyme Rate Experiments
Maths Skill: Drawing a Graph for Enzyme Rate Experiments Enzyme rate experiments?are experiments that are carried out to determine the?effect?of?changing?a particular?factor?on the?rate of a...
Edexcel IGCSE Maths 复习笔记 2.1.1 Expanding One Bracket
What is expanding one bracket? When we expand brackets in algebra we ‘get rid of’ the brackets by multiplying out Expanding one bracket is done by multiplying everything inside the bracket by the f...
AQA A Level Biology复习笔记1.4.4 Required Practical: Measuring Enzyme Activity
Required Practical: Measuring Enzyme Activity The?progress?of?enzyme-catalysed reactions?can be investigated by: Measuring the?rate of formation of a product?using catalase Measuring the?rat...
AQA A Level Biology复习笔记1.4.3 How Enzymes Work
How Enzymes Work The lock-and-key hypothesis Enzymes are?globular proteins This means their?shape?(as well as the shape of the?active site?of an enzyme) is determined by the complex tertiary...
AQA A Level Biology复习笔记1.4.2 Enzyme Specificity
Mode of Enzyme Action Enzymes have an?active site?where?specific substrates bind?forming an?enzyme-substrate complex The?active site?of an enzyme has a?specific shape?to fit a specific subst...
AQA A Level Biology复习笔记1.3.8 The Molecular Structure of Collagen
The Molecular Structure of Collagen Collagen?is the most common?structural?protein found in vertebrates In vertebrates it is the component of?connective tissue?which forms: Tendons Cartilage...
AQA A Level Biology复习笔记1.3.7 The Molecular Structure of Haemoglobin
The Molecular Structure of Haemoglobin Structure Haemoglobin is a?globular?protein which is an oxygen-carrying pigment found in vast quantities in red blood cells It has a?quaternary?structu...
