Biology benchmark 2 semester exam fall 24

Question

Brett learned that his car is better protected from the weather when it has been recently washed and waxed.Which best describes a major group of macmolecules that is protecting his car and how it is performing this task
Carbohydrates are protecting his car because they break down to create chemical energy in the paint
Lipids are protecting his car because they bind with water molecules to form beads of water
Lipids are protecting his car because their nonvolatile nature makes the. Insoluble in water
Carbohydrates are protecting his car because they can provide structural support in the form of cellulose

Answer 1

The correct answer is:

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

In this context, the wax used on the car acts as a hydrophobic (water-repelling) layer, which can cause water to bead up rather than spread out and cling to the surface. This is a characteristic feature of lipids, specifically the waxes that can create a barrier against moisture and other environmental factors. The other options provided do not accurately describe the role of macromolecules in the context of car protection.