A person lives in a hilly area. The drinking water and food is grown in this area are poor in a mineral ‘P’. the deficiency of ‘p’ in the body causes an abnormal enlargement of gland ‘Q’ leading to a disease ‘R’ however, does not occur in the people living in coastal areas.
What is the disease ‘R’?

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Solution

The disease ‘R’ is Goiter.
Goiter:
Goiter is caused due to the lack of iodine in the diet.
The thyroid present in our throat swells up.
Goiter is more common in people living in hilly or inland regions, where iodine is lacking in water and vegetables grown in those areas.

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Q. A student visits hill station in North India during the summer vacations. He observes that some of the people in that area have swollen necks.
(a) Name the disease from which the people with swollen necks are suffering.
(b) What is the cause of this disease?
(c) Why is this disease more prevalent in hilly areas?
(d) What should be done to prevent this disease?

The gland A is attached to the wind pipe in the human body. The gland A makes and secretes a hormone B which controls the metabolism of carbohydrates, fats and proteins in the body. The non-metal element C is necessary for the formation of hormone B. The deficiency of C in the diet can cause a deficiency of hormone B in the body leading to a disease D in which the neck of a person appears to be swollen. People are advised to use salt E in cooking food so as to avoid disease D.

(a) Name (i) gland A, and (ii) hormone B.

(b) What is the element C ?

(d) Name (i) disease D, and (ii) salt E.

A person lives in a hilly area. The drinking water and food is grown in this area are poor in a mineral ‘P’. the deficiency of ‘p’ in the body causes an abnormal enlargement of gland ‘Q’ leading to a disease ‘R’ however, does not occur in the people living in coastal areas.

Why does ‘R’ not occur in coastal areas?

What is the name of mineral ‘p’?

Name the gland ‘Q’?

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The disease ‘R’ is Goiter.Goiter:Goiter is caused due to the lack of iodine in the diet. The thyroid present in our throat swells up.Goiter is more common in people living in hilly or inland regions, where iodine is lacking in water and vegetables grown in those areas.

The disease ‘R’ is Goiter.
Goiter:
Goiter is caused due to the lack of iodine in the diet.
The thyroid present in our throat swells up.
Goiter is more common in people living in hilly or inland regions, where iodine is lacking in water and vegetables grown in those areas.