Which is a function of bone tissue?

• A. Mineral and growth factor storage
• B. Hormone secretion
• C. Oxygen transport
• D. Sensory processing

Answer: (A)

Storing minerals and growth factors is a major function of bone tissue. The bone matrix acts as a mineral reservoir, keeping calcium and phosphate ready for use to maintain bone strength and participate in mineral balance throughout the body. It also contains growth factors trapped in the matrix that can be released during remodeling to aid in bone formation and healing. This storage role is what makes bone a dynamic organ, not just a rigid scaffold.

Oxygen transport is the job of blood and hemoglobin, providing cells with the oxygen they need. Sensory processing happens in the nervous system, not in bone tissue. While bones can produce signaling molecules, the primary function described here is the storage of minerals and growth factors.