Edexcel IGCSE Maths 復習筆記 4.1.1 Angles in Parallel Lines What are parallel lines? Parallel lines are lines that are always equidistant (ie the same distance apart) – no matter how far the lines ...
Phloem: Mass Flow The?Mass Flow Hypothesis?was the model initially used to explain the movement of assimilates in the phloem tissue The mass flow hypothesis was modelled by Ernst Münch in 19...
The Sucrose Loading Mechanism Assimilates such as sucrose are transported from source to sink through the phloem sieve tubes Carbohydrates are generally transported in plants in the form of ...
Movement in the Phloem Although translocation could refer to the transport of substances in the xylem and phloem, as it means ‘moving from one place to another,’ it is more commonly connecte...
Apparatus & Techniques: Using a Potometer Air movement, humidity, temperature and light intensity all have an effect on the rate at which transpiration occurs The table below explains ho...
Transpiration Explained The movement of water through a plants xylem is largely due to the?evaporation of water vapour?from the?leaves?and the?cohesive?and?adhesive?properties exhibited by w...
Required Practical: Dissections Dissections are a vital part of scientific research They allow for the internal structures of organs to be examined so that theories can be made about how the...
Edexcel IGCSE Maths 復習筆記 3.11.4 Differentiation - Kinematics What is kinematics? Kinematics?is the analysis of the motion of a?particle?linking the three vector quantities?displacement,?velocit...
Edexcel IGCSE Maths 復習筆記 3.11.3 Differentiation - Problem Solving What problems could involve differentiation? Differentiation?allows analysis of how one quantity?changes?as another does The?gr...
