Which of the following lists includes all four major classes of biological macromolecules?

• A. Carbohydrates, lipids, enzymes, nucleic acids
• B. Carbohydrates, lipids, proteins, nucleic acids
• C. Carbohydrates, vitamins, proteins, nucleic acids
• D. Lipids, minerals, proteins, nucleic acids

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the concept of biological macromolecules. Biological macromolecules are large molecules essential for life, and they include carbohydrates, lipids, proteins, and nucleic acids. These macromolecules are the building blocks of cells and perform various functions in living organisms.
2. Step 2: Analyze the options provided in the question. The goal is to identify the list that includes all four major classes of biological macromolecules. Carefully read each option and compare it to the known major classes.
3. Step 3: Eliminate incorrect options. For example, enzymes are not a major class of biological macromolecules; they are proteins that act as catalysts. Similarly, vitamins and minerals are not macromolecules; they are smaller molecules or elements required in small amounts.
4. Step 4: Identify the correct list. The correct list should include carbohydrates, lipids, proteins, and nucleic acids, as these are the universally recognized major classes of biological macromolecules.
5. Step 5: Confirm your understanding by reviewing the functions of each macromolecule: Carbohydrates provide energy, lipids store energy and form cell membranes, proteins perform a wide range of functions including catalysis and structural support, and nucleic acids store and transmit genetic information.