Respuesta :
Because the fatty acid chains are saturated and unsaturated hydrocarbons, it implies that the fatty acid chains of a phospholipid is not attracted to water hence why they are turned inwards towards each other and away from aqueous medium. This implies that the interior of the membrane is HYDROPHOBIC (water-fearing/water-repelling).
In a biological membrane, the phospholipids are arranged with the fatty acid chains facing the interior of the membrane. as a result, the interior of the membrane is - hydrophobic.
The cell membrane is a membrane that makes the barrier between the interior of all cells and the outside environment. It is composed of a phospholipid bilayer with embedded proteins.
- Due to phospholipid bilayer that has hydrophilic heads toward the outside and towards the intercellular matrix
- in the middle phospholipid tail is made of fatty acid chains
- These are saturated and unsaturated hydrocarbons, which means that fatty acid chains repelled water.
- So, it is clear that the interior of the membrane is hydrophobic or water-hating.
Thus, the middle membrane of phospholipid of the biological membrane is - hydrophobic.
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