Practical: Investigating the Rate of Diffusion It is possible to investigate the effect of certain factors on the rate of diffusion Different apparatus can be used to do this, such as Visking tubin...
CIE IGCSE Biology: 复习笔记：6.1.6 Investigating the Rate of Photosynthesis Investigating the Rate of Photosynthesis The plants usually used are Elodea or Camboba - types of pondweed As photosynthe...
CIE IGCSE Biology: 复习笔记：6.1.5 Investigating the Need for Chlorophyll, Light & Carbon Dioxide Investigating the Need for Chlorophyll Although plants make glucose in photosynthesis, leaves c...
CIE IGCSE Biology: 复习笔记：6.1.4 Minerals in Plants Minerals in Plants Photosynthesis produces carbohydrates, but plants contain many other types of biological molecule; such as proteins, lipids ...
CIE IGCSE Biology: 复习笔记：6.1.3 Use & Storage of Carbohydrates Use & Storage of Carbohydrates How are the products of photosynthesis used? The carbohydrates produced by plants during pho...
Diffusion & Facilitated Diffusion Diffusion is a type of transportation that occurs across the cell membrane It can be defined as: The net movement, as a result of the random motion of its mole...
CIE IGCSE Biology: 复习笔记：6.1.2 Chlorophyll Chlorophyll Chlorophyll is a green pigment that is found in chloroplasts within plant cells It is this pigment which gives plants their characteristic...
CIE IGCSE Biology: 复习笔记：6.1.1 Photosynthesis Photosynthesis Green plants make the carbohydrate glucose from the raw materials carbon dioxide and water At the same time oxygen is ...
Factors Affecting Membrane Structure & Permeability The permeability of cell membranes is affected by different factors or conditions, such as: Temperature Solvent concentration Temperat...
