We are advised to use iodised salt in our food. A lack of iodine affects the working of which gland and can cause goitre?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Thyroid gland
The thyroid gland needs iodine to make the hormone thyroxine. When the diet lacks iodine, the thyroid swells and shows as a swollen neck, called goitre.