LIFE SCIENCE

Detailed explanation-1: -Answer and Explanation: The characteristic that all lipids have in common is that they are nonpolar molecules, which means they do not dissolve in water.

Detailed explanation-2: -Lipids are chemical substances that are nonpolar in nature. Because water is a polar molecule, they are only soluble in nonpolar solvents and insoluble in water. These molecules can be produced in the human body and are found in oil, butter, whole milk, cheese, fried meals, and some red meats.

Detailed explanation-3: -Lipids are fatty, waxy, or oily compounds that are soluble in organic solvents and insoluble in polar solvents such as water.

Detailed explanation-4: -A fatty acid is a molecule composed of a carboxyl group attached to a long chain of carbon atoms bonded with hydrogen atoms. This is called a “hydrocarbon chain, ‘’ and it is a characteristic all lipids share. The hydrocarbon chain is also what gives lipids their nonpolar property and makes them insoluble in water.

Detailed explanation-5: -Steroids provide structure and cell signaling As you would expect because of all of the nonpolar C-H bonds, steroids are not soluble in water.