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...
CIE IGCSE Biology: 复习笔记：1.1.3 Concept & Uses of Classification Systems: Extended
CIE IGCSE Biology: 复习笔记：1.1.3 Concept & Uses of Classification Systems: Extended Reflecting Evolutionary Relationships: Extended Classification systems aim to reflect evolutionary relation...
OCR A Level Biology:复习笔记2.1.6 Eukaryotic Cells Under the Microscope
Photomicrographs of Eukaryotic Cells There are some features or structures that can help to identify whether a cell shown in an image is a plant cell or animal cell Structures found only in animal ...
CIE IGCSE Biology: 复习笔记：1.1.5 Features of Organisms: Extended
CIE IGCSE Biology: 复习笔记：1.1.5 Features of Organisms: Extended The Five Kingdoms: Extended The first division of living things in the classification system is to put them into one of five kingd...
OCR A Level Biology:复习笔记2.1.5 Eukaryotic Cells
Eukaryotic Cell Structure Cell surface membrane The structure of the cell surface membrane – although the structure looks static the phospholipids and proteins forming the bilayer are constantly in...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：4.4.1 Alkenes
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记：4.4.1 Alkenes The Alkenes All alkenes contain a double carbon bond, which is shown as two lines between two of the carbon atoms i.e. C=C All...
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