2022年北京公立学校国际部招生信息汇总！
已经进入8月，相信家长和学生们也开始考虑规划明年的择校。现在带大家回顾一下2022年21所公办校国际部的招生名额、学费、加试分数线相关信息，供大家参考。 招生信息汇总目录 北师大附属实验中学国际部 北京四中...
IB DP Biology: SL复习笔记1.3.6 Skills: Membrane Structure & Transport
Drawing the Fluid Mosaic Model Membranes Membranes are vital structures found in all cells The cell surface membrane creates an enclosed space separating the internal cell environment from the exte...
IB DP Biology: SL复习笔记1.3.5 Active Transport & Bulk Transport
Active Transport Active transport is the movement of molecules and ions through a cell membrane from a region of lower concentration to a region of higher concentration using energy from respiratio...
IB DP Biology: SL复习笔记1.3.4 Membrane Transport
Passive Transport Simple diffusion Simple diffusion is a type of transportation that involves particles passing between phospholipids in the plasma membrane It can be defined as: The net movement, ...
IB DP Biology: SL复习笔记1.3.3 History of Fluid Mosaic Model
History of Fluid Mosaic Model NOS: Using models as representations of the real world; there are alternative models of membrane structure Scientists use models to represent real world ideas, organis...
IB DP Biology: SL复习笔记1.3.2 Membrane Proteins
Membrane Proteins The phospholipid bilayer carries out the main function of the plasma membrane - to control the movement of substances into and out of the cell The other functions are carried out ...
IB DP Biology: SL复习笔记1.3.1 Phospholipid Bilayer Properties
Amphipathic Properties Phospholipids Phospholipids form the basic structure of the membrane (the phospholipid bilayer) They are formed by a hydrophilic phosphate head bonding with two hydrophobic h...
IB DP Biology: SL复习笔记1.2.8 Skills: Drawing Cells
Drawing Cells Drawing the ultrastructure of cells To record the observations seen under the microscope (or from photomicrographs taken) a labelled biological drawing is often made Biological drawin...
IB DP Biology: SL复习笔记1.2.7 Microscopes
Electron & Light Microscopes NOS: Developments in scientific research follow improvements in apparatus; the invention of electron microscopes led to greater understanding of cell structure In s...
