Phospholipids, the bilayer of the nonpolar tails of these molecules, block the movement of polar compounds and charged ions. It gives the plasma membrane the ability to block most ions and polar compounds from passing through.
This basic cellular structure acts as a barrier that protects the cell from various environmental influences and, more importantly, In addition, it allows multiple cellular processes to occur in subcellular compartments.
Phospholipids are a class of lipid molecules that are the main components of cell membranes. Lipids are molecules that contain fats, waxes, and some vitamins. Each phospholipid is composed of two fatty acids, a phosphate group and a glycerol molecule. In contrast, the interior of the cell membrane is hydrophobic and does not react with water. Thus, phospholipids form excellent bilayer cell membranes that separate intracellular from extracellular fluids.
<u>Phospholipids Key Role -</u>
- The interior of cell membranes is hydrophobic and does not react with water.
- Phospholipid molecules consist of two fatty acid molecules attached to carbons 1 and 2 and a 3-carbon glycerol backbone with a phosphate-containing group attached to the third carbon.
Phospholipids therefore form excellent bilayer cell membranes that separate the intracellular fluid from the extracellular fluid.
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