The sex hormones estradiol and testosterone belong to which class of molecules?

• A. Proteins
• B. Amino acids
• C. Carbohydrates
• D. Nucleic acids
• E. Lipids

Answer: (E)

Verified step by step guidance

1. Begin by understanding the basic classes of biological molecules: proteins, amino acids, carbohydrates, nucleic acids, and lipids.
2. Recognize that proteins are composed of amino acids and are involved in various functions such as catalysis, structure, and signaling.
3. Identify that carbohydrates are primarily used for energy storage and structural purposes, consisting of sugar molecules.
4. Understand that nucleic acids, such as DNA and RNA, are responsible for storing and transmitting genetic information.
5. Learn that lipids are a diverse group of hydrophobic molecules, including fats, oils, and hormones like estradiol and testosterone, which are involved in energy storage and signaling.