Consider the following statements regarding the symptoms of Goiter: 1. It is caused by Calcium deficiency. 2. It involves mental disability in children. 3. It involves the swelling of glands in the neck. Which of the statements given above are correct?

The correct option is (c). Explanation Goiter is a pathological condition characterized by the enlargement of the thyroid gland. It is primarily associated with nutritional deficiencies affecting the synthesis of thyroid hormones, which regulate metabolism, growth, and development. Statement-wise Analysis: - Statement 1 is Incorrect. Goiter is caused by a deficiency of Iodine in the diet, not Calcium. Iodine is a critical micronutrient required for the production of thyroid hormones (thyroxine and triiodothyronine). When iodine levels are low, the thyroid gland enlarges in an attempt to trap more iodine from the blood. - Statement 2 is Correct. Iodine deficiency, particularly during pregnancy and early childhood, can lead to severe developmental disorders. In children, it can cause cretinism, a condition characterized by stunted physical growth and mental disability (low intelligence quotient). - Statement 3 is Correct. The hallmark symptom of goiter is the swelling of the thyroid gland, which is located in the neck region. This manifests as a visible lump or enlargement in the neck. Key Takeaway: Goiter is an iodine-deficiency disorder resulting in the enlargement of the thyroid gland and can lead to mental disability in children if the deficiency occurs during developmental stages.

NCERT Class 6 Science — Chapter 2: Components of food

mcqeasy

Consider the following statements regarding the symptoms of Goiter:

It is caused by Calcium deficiency.
It involves mental disability in children.
It involves the swelling of glands in the neck.

Which of the statements given above are correct?

Official previous-year question

Verified 1 Aug 2026.

Options

A1 and 2 only
B2 only
C2 and 3 only
D1, 2 and 3

Did you get this right?

Solution

The correct option is (c).

Explanation

Goiter is a pathological condition characterized by the enlargement of the thyroid gland. It is primarily associated with nutritional deficiencies affecting the synthesis of thyroid hormones, which regulate metabolism, growth, and development.

Statement-wise Analysis:

Statement 1 is Incorrect. Goiter is caused by a deficiency of Iodine in the diet, not Calcium. Iodine is a critical micronutrient required for the production of thyroid hormones (thyroxine and triiodothyronine). When iodine levels are low, the thyroid gland enlarges in an attempt to trap more iodine from the blood.
Statement 2 is Correct. Iodine deficiency, particularly during pregnancy and early childhood, can lead to severe developmental disorders. In children, it can cause cretinism, a condition characterized by stunted physical growth and mental disability (low intelligence quotient).
Statement 3 is Correct. The hallmark symptom of goiter is the swelling of the thyroid gland, which is located in the neck region. This manifests as a visible lump or enlargement in the neck.

Key Takeaway:
Goiter is an iodine-deficiency disorder resulting in the enlargement of the thyroid gland and can lead to mental disability in children if the deficiency occurs during developmental stages.

Your note

More from Chapter 2: Components of food

Consider the following statements regarding the testing of nutrients in food items: 1. A blue-black colour produced after adding dilute iodine solution indicates the presence of starch. 2. A violet colour produced after adding copper sulphate and caustic soda indicates the presence of fats. Which of the statements given above is/are correct?

easy

Consider the following statements regarding the preparation of solutions for nutrient testing: 1. A dilute solution of iodine is prepared by dissolving copper sulphate in water. 2. Copper sulphate solution is prepared by dissolving copper sulphate in water. 3. Caustic soda solution is prepared by dissolving caustic soda in water. Which of the statements given above are correct?

medium

With reference to the test for fats in food items, consider the following statements: 1. An oily patch on paper generally indicates the presence of fat in the food item. 2. If a food item contains water, it will never leave a wet patch on the paper. 3. The paper should be heated strongly to check for the presence of starch. Which of the statements given above is/are correct?

medium

Consider the following statements about dietary fibres: 1. Dietary fibres are also known as roughage. 2. They are mainly provided by animal products like milk and eggs. 3. They do not provide any nutrient to our body. Which of the statements given above are correct?

medium

With reference to the role of water in the body, consider the following statements: 1. Water prevents the body from absorbing nutrients from food. 2. It helps in throwing out some wastes from the body as urine and sweat. 3. The body gets water from liquids drunk as well as from cooked food items. Which of the statements given above are correct?

easy

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The correct option is (c).

Explanation

Statement-wise Analysis:

Statement 1 is Incorrect. Goiter is caused by a deficiency of Iodine in the diet, not Calcium. Iodine is a critical micronutrient required for the production of thyroid hormones (thyroxine and triiodothyronine). When iodine levels are low, the thyroid gland enlarges in an attempt to trap more iodine from the blood.
Statement 2 is Correct. Iodine deficiency, particularly during pregnancy and early childhood, can lead to severe developmental disorders. In children, it can cause cretinism, a condition characterized by stunted physical growth and mental disability (low intelligence quotient).
Statement 3 is Correct. The hallmark symptom of goiter is the swelling of the thyroid gland, which is located in the neck region. This manifests as a visible lump or enlargement in the neck.