Answer to Question #90798 in Cell Biology for Aditya Dutta

Question

The main component/(s) of plasma membrane are?
1) lipid and proteins
2) phospholipids
3) cellulose and proteins
4) cellulose and lipids

Answer 1

The major components of plasma membrane are

1.   Lipids and proteins.

The principal components of plasma membrane are lipids, proteins and carbohydrates. Lipids constitutes of 40% of composition of mass of membrane volume (in which 75% of lipid is phospholipids, 20% of lipid is cholesterol and 5% of lipid is glycolipids), Protein accounts 50% of composition of mass of membrane volume and carbohydrate accounts for 10% of mass of the membrane volume.