OCR A Level Biology:復習筆記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 復習筆記：4.4.1 Alkenes
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：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...
OCR A Level Biology:復習筆記2.1.4 Magnification & Resolution
Magnification Formula Magnification?is?how many times bigger?the image of a specimen observed is in comparison to the actual (real-life) size of the specimen The?magnification?(M) of an object can ...
OCR A Level Biology:復習筆記2.1.3 Drawing Cells
Drawing Cells To record the observations seen under the microscope (or from photomicrographs taken) a labelled biological drawing is often made Biological drawings?are line pictures which show spec...
OCR A Level Biology:復習筆記2.1.2 Using a Microscope
Preparation of Microscope Slides Many biological structures are too small to be seen by the naked eye Optical microscopes are an invaluable tool for scientists as they allow for tissues, cells and ...
OCR A Level Biology:復習筆記2.1.1 Studying Cells
Use of Microscopy Microscopes?can be used to analyse?cell components?and observe?organelles Magnification?and?resolution?are two scientific terms that are very important to understand and?distingui...
OCR A Level Biology:復習筆記1.2.16 Practical: Using a Light Microscope
Practical: Using a Light Microscope Many biological structures are too small to be seen by the naked eye Optical microscopes are an invaluable tool for scientists as they allow for tissues, cells a...
OCR A Level Biology:復習筆記1.2.15 Practical: Investigating the Rate of Transpiration
Practical: Investigating the Rate of Transpiration Using a potometer Air movement, humidity, temperature and light intensity all have an effect on the rate at which transpiration occurs The table b...
CIE IGCSE Biology: 復習筆記：1.1.4 Features of Organisms
CIE IGCSE Biology: 復習筆記：1.1.4 Features of Organisms The Five Kingdoms The first division of living things in the classification system is to put them into one of?five kingdoms. They are: Anima...
