Chemical Compostion OF Plasma Membrane

Chemical Composition of plasma membrane-

Plsma membrane consists of-

• Lipids
• Proteins
• Carbohydrayes

The ratio of protein to lipids various

 

• Plasma membrane of RBC contains 43% lipids and 49% protein.
• Plasma membrane of mouse, liver cells cotains 54% lipids and 46% protein.

Lipids-

• Two leaflets of amphipathic lipid molecules present on the plasma membrane.

• Polar heads are facing toward extra intracellular aqueous phase wheareas their non polar tails face each orther, constituting hydrophobic interrior.

• There are three classes of lipids molecules present in lipids bilayer.

• Phospholipid
• 
  
• Glycolipid
• 
  
• Sterol

  Structure of phospholipids-

 

 

Mind map-

Glycolipids = Carbohydrate + lipids

Glycoproteins = Carbohyrate + Protein

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