CIE IGCSE Biology: 复习笔记：3.1.1 Diffusion
CIE IGCSE Biology: 复习笔记：3.1.1 Diffusion Diffusion Diffusion is the movement of molecules from a region of its higher concentration to a region of its lower concentration Molecules move down a ...
CIE IGCSE Biology: 复习笔记：3.1.2 Factors that Influence Diffusion
CIE IGCSE Biology: 复习笔记：3.1.2 Factors that Influence Diffusion Factors that Influence Diffusion Surface area to volume ratio The bigger a cell or structure is, the smaller its surface a...
CIE IGCSE Biology: 复习笔记：2.1.4 Converting Between Units: Extended
CIE IGCSE Biology: 复习笔记：2.1.4 Converting Between Units: Extended Converting Between Units: Extended Using millimetres and micrometres as units The table below shows how millimetres are related...
CIE IGCSE Biology: 复习笔记：2.1.3 Magnification Formula
CIE IGCSE Biology: 复习笔记：2.1.3 Magnification Formula Magnification Formula Calculating magnification and specimen size using millimetres as units Magnification is calculated using the following...
CIE IGCSE Biology: 复习笔记：2.1.2 Organisation of Cells
CIE IGCSE Biology: 复习笔记：2.1.2 Organisation of Cells Producing New Cells The cells in your body need to be able to divide to help your body grow and repair itself Cells grow and divide over and...
CIE IGCSE Biology: 复习笔记：2.1.1 Cell Structure
CIE IGCSE Biology: 复习笔记：2.1.1 Cell Structure Animal & Plant Cells Animals The main features of animals: They are multicellular Their cells contain a nucleus with a distinct membrane Their ...
OCR A Level Biology:复习笔记2.1.9 Prokaryotic & Eukaryotic Cells
Comparison of Prokaryotic & Eukaryotic Cells Animal and plant cells are types of eukaryotic cells, whereas bacteria are a type of prokaryote Prokaryotic cells are much smaller than eukaryotic c...
OCR A Level Biology:复习笔记2.1.8 The Cytoskeleton
The Cytoskeleton Within the cytoplasm of cells, there is an extensive network of protein fibres This is known as the cytoskeleton The cytoskeleton is made up of two main types of protein fib...
OCR A Level Biology:复习笔记2.1.7 Organelles & the Production of Proteins
Organelles & the Production of Proteins In cells, many organelles are involved in the production and secretion of proteins Organelles are specialised parts of a cell that carry out a particular...
