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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. The disease R, however, does not occur in the people living in
coastal areas.
(i) What is the name of mineral P?
(ii) Name the gland Q?
(iii) What is disease R?
(iv) Why does disease R not occur in coastal areas?
(v) What are the main symptoms found in children due to deficiency of mineral P?
OR
(i) Minerals and vitamins are needed in very small quantities by our body as compared to
other components, yet, they are an important part of a balanced diet. Explain the
statement.
(ii) How can you test the presence of starch in a food material?
Answers
Answer:
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Explanation:
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Answer:
1) Minerals and vitamins are needed in very small quantities by our body as compared to
Minerals and vitamins are needed in very small quantities by our body as compared toother components, yet, they are an important part of a balanced diet. Explain the
Minerals and vitamins are needed in very small quantities by our body as compared toother components, yet, they are an important part of a balanced diet. Explain thestatement.
Answer :- Your body needs larger amounts of some minerals, such as calcium, to grow and stay healthy. Other minerals like chromium, copper, iodine, iron, selenium, and zinc are called trace minerals because you need only very small amounts of them.
2) How can you test the presence of starch in a food material?
Answer :- Take a piece of the food item. Add 2-3 drops of dilute iodine solution on it. If the colour of the food item becomes blue-black, then it indicates the presence of starch in that food and if the colour doesn't turn into blue-black, then it indicates starch is not present.
Explanation:
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