2022年5门AP成绩提前曝光！7月5日正式放分，5分率最低的科目是哪个？
大家都知道今年AP成绩的正式放榜时间是7月5日，但是这两天AP考试中心的副总裁特雷弗·帕克（Trevor Packer），突然连夜在社交平台上陆续发布了2022年的AP成绩的5分率数据！ 这份数据包括了五门科目的成绩，分别为...
AQA A Level Biology复习笔记1.4.14 Practical Skill: Controlling Variables & Calculating Uncertainty
Practical Skill: Control of Variables & Uncertainty Enzyme rate experiments are experiments that are carried out to determine the effect of changing a particular factor on the rate of a ...
AQA A Level Biology复习笔记1.4.13 Models & Functions of Enzyme Action
Students should be able to: Appreciate the Models & Functions of Enzyme Action Models of enzyme action Scientists often use models to explain their observations from experiments As techn...
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Enzyme Inhibitors An enzyme's activity can be reduced or stopped, temporarily, by a reversible inhibitor There are two types of reversible inhibitors: Competitive inhibitors have a similar s...
AQA A Level Biology复习笔记1.4.11 Limiting Factors Affecting Enzymes: Substrate Concentration
Rate: Substrate Concentration The greater the substrate concentration, the higher the rate of reaction: As the number of substrate molecules increases, the likelihood of enzyme-substrate com...
AQA A Level Biology复习笔记1.4.10 Limiting Factors Affecting Enzymes: Enzyme Concentration
Rate: Enzyme Concentration Enzyme concentration affects the rate of reaction The higher the enzyme concentration in a reaction mixture, the greater the number of active sites available and the grea...
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Edexcel IGCSE Maths 复习笔记 2.3.1 Expanding Two Brackets - Basics
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Rate: pH All enzymes have an optimum pH or a pH at which they operate best Enzymes are denatured at extremes of pH Hydrogen and ionic bonds hold the tertiary structure of the protein (ie. th...
AQA A Level Biology复习笔记1.4.7 Limiting Factors Affecting Enzymes: Temperature
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Edexcel IGCSE Maths 复习笔记 2.2.2 Simple Factorisation
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