Answer:

Asked by nkrbasak | 29th Sep, 2010, 09:25: PM

Expert Answer:

Dear student,
a) Iodine is essential in the formation of thyroxine hormone, hence it is essential to use iodised salt.
b) Goitre is caused by its deficiency.

c) The main symptom for a person with goiter is swelling of the thyroid gland. This may eventually become a noticeable lump in the throat

The following symptoms may also exist when a person has goiter:
  • Hoarseness (voice)
  • Coughing more frequently than usual
  • A feeling of tightness in the throat
  • Swallowing difficulties (less common)
  • Breathing difficulties (less common)
  • Emotional upsets and irritation
  • Sometimes there may be a tremor of the hands and a feeling of extreme tiredness
  • Loss of weight
 We hope this clarifies your query.
Regards
Team 
Topperlearning

Answered by  | 30th Sep, 2010, 06:40: AM

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