Which of the following is a primary function of calcium in the human diet?

• A. Production of bile in the liver
• B. Regulation of blood glucose levels
• C. Formation and maintenance of bones and teeth
• D. Synthesis of genetic material

Answer: (C)

Verified step by step guidance

1. Understand the role of calcium in the human body: Calcium is a mineral essential for various physiological processes, including the formation and maintenance of bones and teeth, muscle contraction, nerve signaling, and blood clotting.
2. Eliminate incorrect options: Calcium is not involved in the production of bile in the liver, as bile production is primarily related to cholesterol metabolism and liver function.
3. Eliminate another incorrect option: Calcium does not regulate blood glucose levels. Blood glucose regulation is primarily controlled by hormones like insulin and glucagon.
4. Consider the correct option: Calcium is a key component of hydroxyapatite, a mineral that provides strength and structure to bones and teeth. This is its primary function in the human diet.
5. Verify the last option: Calcium is not directly involved in the synthesis of genetic material, as this process primarily involves nucleotides, enzymes, and other molecules.