Here's why:
* Lipids are hydrophobic: This means they "fear" water and repel it.
* Water is polar: Its molecules have a positive and negative end, making it a good solvent for other polar molecules.
* Lipids are nonpolar: Their molecules have an even distribution of charge, making them incompatible with water.
Examples of lipids include:
* Fats and oils: Found in foods and used for energy storage.
* Waxes: Used for protective coatings on plants and animals.
* Steroids: Important hormones like cholesterol and testosterone.
* Phospholipids: Form the membranes of cells.
Let me know if you'd like to know more about any specific lipid!