Sliding Filament Theory Structure of thick & thin filaments in a myofibril The thick filaments within a myofibril are made up of myosin molecules These are fibrous protein molecules with a glob...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：1.6 4 Ionic Bonds: Dot & Cross Diagrams Ionic Bonds: Dot & Cross Diagrams Deducing Dot & Cross Diagrams for Ionic Compounds Sodi...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记： 1.6.3 Formulae for Ionic Compounds Formulae for Ionic Compounds The formulae of simple ionic compounds can be calculated if you know the ch...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：1.6.2 Common Ions Common Ions How to deduce the charge of an ion Find the number of electrons in the outer electron shell Find out if it is ...
Muscle Fibres: Structure Skeletal muscle makes up the muscles in the body that are attached to the skeleton Skeletal muscle is made up of muscle fibres A muscle fibre is a highly specialised cell-l...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：1.5.8 Empirical & Molecular Formulae Empirical & Molecular Formulae The molecular formula is the formula that shows the number and t...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：1.5.7 Practical: Determine the Formula of a Metal Oxide Practical: Determine the Formula of Magnesium Oxide Aim: To determine the empirical formula...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：1.5.6 Experiment: Finding Formulae of Compounds Formulae of Simple Compounds by Experiment Making Careful Quantitative Measurements The form...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：1.5.5 Calculate Percentage Yield Calculate Percentage Yield Yield is the term used to describe the amount of product you get from a reaction...
作为面向全球华人中学生的科研学术活动，多年来丘奖已经有超过一半的获奖者都成功进入了清华、北大、哈佛、MIT、耶鲁、普林斯顿等中外TOP高校就读，可见丘奖在国际上的影响力！ 丘成桐中学科学奖（简称“丘奖”）于...
Movement of the Skeleton The effective movement of the human body requires both muscle and an incompressible skeleton This is because muscles will only produce effective movement if they pull on a ...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：1.5.4 Calculate Reacting Masses Calculate Reacting Masses Chemical equations can be used to calculate the moles or masses of reactants and p...
