2.4.1 Membrane model: scientific inquiry

Fluid mosaic model 流动镶嵌模型

2.4.2 Cell membrane are composed of 2 layers of lipid

It has a polar head and a non-polar tail

2.4.3 Proteins & carbohydrates associate with cell membranes

Proteins on the membrane can be classified into 3 type by their functions:

1. transport
2. receptor
3. Anchor (锚定)

or it can be classified into 2 types by their positions

1. peripheral protein外围蛋白
2. integral protein整合蛋白 (through the hole membrane) → transmembrane protein

Glycoprotein 糖蛋白

Glycolipid 糖脂