A doctor came to the village, carefully listened to the residents’ problems, and gave them the advice to substitute iodized salt for regular salt in their food. The issue was largely resolved within a few months. What was the cause of the swollen neck of people in the village?
A. Efficiency of p arathyroid h ormone.
B. Deficiency of thyroxine hormone.
C. Increased concentration of thyroxine hormone.
D. Deficiency of parathyroid hormone. (1)
Answer:B
A doctor came to the village, carefully listened to the residents’ problems, and gave them the advice to substitute iodized salt for regular salt in their food. The issue was largely resolved within a few months. What was the cause of the swollen neck of people in the village?
A. Efficiency of p arathyroid h ormone. B. Deficiency of thyroxine hormone. C. Increased concentration of thyroxine hormone. D. Deficiency of parathyroid hormone. (1)
Explanation: Goitre is a condition that causes the swollen neck. Thyroxine hormone deficiency is the cause of goitre. Because iodine aids in the production of the hormone thyroxine, which helps to prevent goitre, using iodized salt was advised.