Brett learned that his car is better protected from the weather when it has been recently washed and waxed. Which best describes the major group of macromolecules that is protecting his car and how it is performing this task?

Question

A.
Carbohydrates are protecting his car because they break down to create chemical energy in the paint.

B.
Lipids are protecting his car because they bond with water molecules to form beads of water.

C.
Lipids are protecting his car because their nonpolar nature makes them insoluble in water.

D.
Carbohydrates are protecting his car because they can provide structural support in the form of cellulose.

Answer 1

The best answer is:

C. Lipids are protecting his car because their nonpolar nature makes them insoluble in water.

In this context, wax (which is a type of lipid) provides a protective layer that repels water and prevents water from adhering to the surface of the car, thereby reducing the risk of water damage and rust.