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Why phospholipids contain nitrogenous bases in them?

Why phospholipids contain nitrogenous bases in them?

Grade:12th pass

2 Answers

Ravleen Kaur
askIITians Faculty 1452 Points
6 years ago
Hello Student,

Phospholipids are compound lipids and are of two types

Glycerophospholipids and sphingophospholipids

The Glycerophospholipids contain glycerol, saturated and unsaturated fatty acid, phosphoric acid and a nitrogenous base. The various glycerophospholipids are phosphatidyl choline (lecithin) Phosphatidyl serine( cephalin) Phosphatidyl ethanolamine Phosphatidyl inositol Cardiolipin and plasmalogen.

3.Sphingophospholipids contains sphingosine (instead of glycerol) fatty acid, phosphate and choline Ex: sphingomyelin CH2-O-CO-R1 CH2-O-CO-R1 CH-O-CO-R2 CH-O-CO-R2 CH2-O-phosphoric acid CH2-O-phosphoric acid-Choline phosphatidic acid Lecithin (phosphatidyl choline) phosphatidyl choline (lecithin) Contains alcohol, fatty acid, phosphoric acid and choline.

Regards
IHE
Simran Vinaik
askIITians Faculty 1230 Points
6 years ago
  • The properties of a phospholipid are characterized by the properties of the fatty acid chain and the phosphate/amino alcohol.
  • The long hydrocarbon chains of the fatty acids are of course non-polar.The phosphate group has a negatively charged oxygen and a positively charged nitrogen to make this group ionic. Basically the nitrogenous base makes the phospholipid more polar and ionic.

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