Question

which statement correctly matches a type of macromolecule with its function?
a proteins can serve as oils and waxes
b lipids act as enzymes and hormones
c nucleic acids can encode genetic information
d carbohydrates can insulate and protect organs

Explanation:

• Analyze Option A: Oils and waxes are lipids, not proteins. Proteins have functions like structural support, enzyme catalysis, etc. So A is incorrect.
• Analyze Option B: Enzymes are mostly proteins, and while some lipids are hormones (like steroid hormones), lipids as a group don't primarily act as enzymes. So B is incorrect.
• Analyze Option C: Nucleic acids (DNA and RNA) are responsible for encoding and transmitting genetic information. This is a core function of nucleic acids.
• Analyze Option D: Lipids (like fat) insulate and protect organs, while carbohydrates are mainly for energy storage (e.g., starch, glycogen) and structural support (e.g., cellulose). So D is incorrect.

Answer:

C. Nucleic acids can encode genetic information