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...
2022 BPhO最新考情分析出炉！BPhO真题解析免费领取！
不仅帮助多位学生圆梦BPhO超级金奖 辅导的学生还成功入选IPHO香港集训队 在介绍这位低调的Raybet比分 物理明星导师之前 先来听听TA的学生们都有哪些话要说吧~ Raybet比分 学员：J同学 BPhO超级金奖得主，总分中国赛区第3，PUPC...
2022HiMCM/MidMCM论文提交即将截止，这些注意事项你知道吗？
2022年美国数学建模大赛 HiMCM & MidMCM 美东时间11月15日晚8点 就要截止提交啦！ HiMCM & MidMCM提交注意事项 大赛官方对论文的格式、提交方式也有相对应的要求，大家一定要认真阅读这些注意事项，千...
OCR A Level Biology:复习笔记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:复习笔记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:复习笔记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 ...
