Question

why the cell membrane is also called the phospholipid bilayer.

Answer 1

Answer:

Because the phospholipids that form the cell membrane are a fluid substance, the membrane is also considered a fluid structure (similar to oil floating on the surface of water).

Explanation:

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Answer 2

Answer:

The lipid bilayer is a universal component of all cell membranes.

Explanation:

• The plasma membrane is composed mainly of phospholipids, which consist of fatty acids and alcohol.
• The phospholipids in the plasma membrane are arranged in two layers, called a phospholipid bilayer, with a hydrophobic, or water-hating, interior and a hydrophilic, or water-loving, exterior.
• These membranes are flat sheets that form a continuous barrier around all cells.
• The cell membranes of almost all organisms and many viruses are made of a lipid bilayer.
• The lipid bilayer is a universal component of all cell membranes.
• Each lipid molecule contains a hydrophilic region called a polar head region and a hydrophobic or nonpolar tail region.