Question

2. A survey found that people living in the
mountains have enlarged neck and slow
physical development,
(a) Their diet is deficient in phosphorus
hence underdeveloped bones.
(b) Their diet is deficient in iron and hence
has less blood in the body.
(c) Their diet is deficient in iodine required
for proper growth.
(d) Their diet is deficient in vitamins.​

Answer 1

Answer:

Your answer is (C) Their diet is deficient in iodine required for proper growth.

Answer 2

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People living in mountainous habitats are mostly likely to suffer from a disorder whose signs are enlarged neck and slow growth of the body. This is because, their body is deficient in Iodine which is required for proper growth. The correct answer is Option C.

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Reasons of having this kind of disorder:

• The soil in higher altitude generally lacks Iodine which have a direct effect on the food of the inhabitants.

• Due to the consumption of food lacking Iodine, the thyroid gland doesn't produce enough thyroxine for the body.

• This leads to enlargement of thryoids near neck and slow physical environment.

Another reason:

• The environment is very cold, ATP demand in the body is very high and less oxygen also leads to the depletion in thryoxine production.

• Hence, The people living in hilly reasons are now supplied and advised to consume iodized salt in order to prevent it.