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Which component of the cell membrane is made of lipids?

  1. Phospholipids

  2. Proteins

  3. Enzymes

  4. Monosaccharides

The correct answer is: Phospholipids

The cell membrane is composed of lipids and proteins. These lipids are primarily phospholipids, hence making them the main component of the cell membrane. While proteins are also essential components of the cell membrane, they are not made of lipids and are therefore not the correct answer. Enzymes and monosaccharides, while important for cellular processes, are not major components of the cell membrane and do not make up its structure.