Which element is essential for human thyroid function? MEDIUM 2 Points -0.25 Negative MCQ #1493 Biology Sciences Federal NTS Question Which element is essential for human thyroid function? Options A Iron B Calcium C Iodine D Zinc Reveal Answer Reset 📝 Explanation Iodine is essential for the thyroid gland to produce thyroid hormones (T3 and T4). Iodine deficiency causes goitre (enlarged thyroid) and hypothyroidism. ← Previous MCQ📋 All MCQs📚 LearnNext MCQ → Related MCQs EASY The longest bone in the human body is MEDIUM The smallest bone in the human body is EASY The heart is located in