Organic compounds that assist in regulating physiologic processes and do not supply energy; essential for bones, immune function, and vision?

• A. Vitamins
• B. Minerals
• C. Proteins
• D. Carbohydrates

Answer: (A)

Vitamins are organic micronutrients required in small amounts to regulate many body processes. They don’t provide energy themselves, but they enable key functions like bone health, immune defense, and vision. For bones, vitamin D helps with calcium absorption and bone mineralization. For immunity, vitamins such as A, C, and D support barrier defenses, antibody production, and antioxidant protection. For vision, vitamin A (retinol) is essential for proper light perception in the retina. Because vitamins are organic and must be consumed in the diet, they fit this description best. Minerals are inorganic and regulate processes too but aren’t organic; proteins and carbohydrates primarily provide building blocks and energy, respectively.