Question

which statement best relates to how the structure of a lipid influences the lipid’s function?
lipids contain fatty acids and glycerol.
a lipid is made up of a long chain of phosphorus molecules.
a phospholipid has a charged head and an uncharged tail.
the ends of the lipid are attached to each other.

Explanation:

To determine the correct answer, we analyze each option:

• Option 1: "Lipids contain fatty acids and glycerol" describes the components of some lipids (like fats) but doesn't directly relate structure to function.
• Option 2: Lipids do not consist of long chains of phosphorus molecules; phospholipids have a phosphate group, but this statement is incorrect.
• Option 3: A phospholipid has a charged (hydrophilic) head and an uncharged (hydrophobic) tail. This structure allows phospholipids to form cell membranes (the hydrophilic heads interact with water, and hydrophobic tails avoid water, creating a bilayer), directly relating structure to function.
• Option 4: The ends of a lipid are not typically attached to each other in a way that explains function, and this statement is not accurate for most lipids.

Answer:

C. A phospholipid has a charged head and an uncharged tail.