NTA Abhyas NEET2020BotanyCell - The Unit of LifePractice
Glycolipids in the plasma membrane are located at
Options
- AInner leaflet of the plasma membrane
- BThe outer leaflet of the plasma membrane
- CEvenly distributed in the inner and outer leaflets
- DIt varies according to cell types
Correct answer
B. The outer leaflet of the plasma membrane
Step-by-step solution
In eukaryotes, the cell membrane is explained as a fluid mosaic model by Schleiden and Schwann. According to this model the plasma membrane is made up of lipids and proteins. The lipids are arranged in a bilayer. The lipids present are phospholipids. These are arranged in such a way that the polar heads are towards the outer side and hydrophobic ends are towards the inner side. The ratio of proteins and lipids are different in different cell types. In humans it is seen that around 40 percent is lipid and 52 percent