American Society of Exercise Physiologists (ASEP) Board Practice Exam

One of the major functions of minerals, particularly major minerals such as calcium, phosphorus, and magnesium, is to strengthen bones. Calcium, for example, is essential for building and maintaining strong bone structure. It provides strength and rigidity to the skeletal system, which is crucial for overall body support and protection of vital organs. Phosphorus also plays a critical role in bone health, working alongside calcium to form hydroxyapatite, the mineral complex that gives bones their strength.

In addition to these structural roles, major minerals are involved in various physiological processes that support bone health, including the regulation of bone density and the repair of bone tissue after injury. Ensuring adequate intake of these minerals is essential for preventing bone-related diseases such as osteoporosis.

Other options focus on different functions: oxygen transport is primarily the role of hemoglobin in red blood cells rather than a direct function of major minerals; hormone regulation involves a complex interplay of various nutrients and signals; and while minerals can play a role in muscle function and energy metabolism, endurance enhancement is not a primary function of major minerals themselves.