Question

Which of the following is abundantly available in the Sea and administered in a certain deficiency disease?
1. Vitamin A
2. Iron
3. Fluorine
4. Iodine

Answer 1

Correct Answer - Option 4 : Iodine

The correct answer is Iodine.

• Iodine is abundantly available in the Sea and administered in a certain deficiency disease.

• Deficiency of Iodine causes goitre.
• Goitre is swelling of the thyroid gland.
• The hormones secreted by it are Thyroxine and Triiodothyronine.
• Iodine is used as an antiseptic and in making a tincture of iodine 

• Iodine-131 is employed to study the structure and activity of thyroid gland.
• Iodine-123 is used in external radiation therapy for the treatment of cancer. 
• Deficiency of vitamin-A causes night blindness.
• Deficiency of iron causes iron deficiency anaemia.
• Dental fluorosis is caused due to excess of fluoride in drinking water.