Which biomolecule class and primary function correctly matches?

Which biomolecule class and primary function correctly matches?

• A. Carbohydrates (energy and structure); Lipids (barrier formation and energy storage); Proteins (catalysis, structure, signaling); Nucleic acids (genetic information storage and transmission)
• B. Lipids (energy and genetic information); Carbohydrates (membrane structure); Proteins (energy storage); Nucleic acids (barrier formation)
• C. Nucleic acids (energy storage); Carbohydrates (genetic information transmission); Proteins (catalysis); Lipids (structure)
• D. Proteins (energy storage); Nucleic acids (catalysis); Carbohydrates (signaling); Lipids (genetic information)

Answer: (A)

Knowing what each biomolecule class does helps you judge these pairings. Carbohydrates primarily provide quick energy and can contribute to structural components in organisms. Lipids store energy long-term and form barriers such as cell membranes. Proteins perform catalytic roles as enzymes, provide structural support, and participate in signaling. Nucleic acids store and transmit genetic information, guiding the production of proteins and passing hereditary material to the next generation. The first option matches these primary roles: carbohydrates for energy and structure, lipids for barrier formation and energy storage, proteins for catalysis, structure, and signaling, and nucleic acids for genetic information storage and transmission. The other options mix up these roles—such as placing genetic information with lipids or energy storage with nucleic acids—so they don’t align with the typical functions of these biomolecule classes.

Knowing what each biomolecule class does helps you judge these pairings. Carbohydrates primarily provide quick energy and can contribute to structural components in organisms. Lipids store energy long-term and form barriers such as cell membranes. Proteins perform catalytic roles as enzymes, provide structural support, and participate in signaling. Nucleic acids store and transmit genetic information, guiding the production of proteins and passing hereditary material to the next generation. The first option matches these primary roles: carbohydrates for energy and structure, lipids for barrier formation and energy storage, proteins for catalysis, structure, and signaling, and nucleic acids for genetic information storage and transmission. The other options mix up these roles—such as placing genetic information with lipids or energy storage with nucleic acids—so they don’t align with the typical functions of these biomolecule classes.