CIE IGCSE Biology: 復(fù)習(xí)筆記：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 ...
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...
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...
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: 復(fù)習(xí)筆記：1.1.3 Concept & Uses of Classification Systems: Extended Reflecting Evolutionary Relationships: Extended Classification systems aim to?reflect evolutionary relation...
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: 復(fù)習(xí)筆記：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...
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 復(fù)習(xí)筆記：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...
