With reference to the symptoms of deficiency diseases, consider the following statements: 1. Bleeding gums and slow healing of wounds are symptoms of Scurvy. 2. Weak bones and tooth decay are symptoms of Iron deficiency. 3. Poor vision and loss of vision in darkness are symptoms of Rickets. Which of the statements given above is/are correct?

The correct option is (a). Explanation Deficiency diseases are disorders caused by the lack of essential nutrients, such as vitamins and minerals, in the diet over a prolonged period. Each nutrient serves a specific physiological function, and its absence manifests as distinct clinical symptoms. - Statement 1 is Correct: Scurvy is caused by a deficiency of Vitamin C (Ascorbic acid). Vitamin C is essential for the synthesis of collagen, a protein required for maintaining the integrity of blood vessels, skin, and gums. Consequently, symptoms include bleeding gums, internal bleeding, and the slow healing of wounds. - Statement 2 is Incorrect: Weak bones and tooth decay are symptoms associated with a deficiency of Calcium or Vitamin D. A deficiency of Iron leads to Anaemia, which is characterized by general weakness, fatigue, and pale skin due to insufficient haemoglobin production. - Statement 3 is Incorrect: Poor vision and loss of vision in darkness (Night Blindness) are classic symptoms of Vitamin A deficiency. Rickets is caused by a deficiency of Vitamin D, which results in soft, weak, and deformed bones (such as bowed legs) in children. Key Takeaway: It is crucial to distinguish between specific vitamin deficiencies: Vitamin A deficiency causes Night Blindness; Vitamin C deficiency causes Scurvy (bleeding gums); and Vitamin D deficiency causes Rickets (bone deformities).

NCERT Class 6 Science — Chapter 2: Components of food

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With reference to the symptoms of deficiency diseases, consider the following statements:

Bleeding gums and slow healing of wounds are symptoms of Scurvy.
Weak bones and tooth decay are symptoms of Iron deficiency.
Poor vision and loss of vision in darkness are symptoms of Rickets.

Which of the statements given above is/are correct?

Official previous-year question

Verified 1 Aug 2026.

Options

A1 only
B2 only
C1 and 3 only
D1, 2 and 3

Did you get this right?

Solution

The correct option is (a).

Explanation

Deficiency diseases are disorders caused by the lack of essential nutrients, such as vitamins and minerals, in the diet over a prolonged period. Each nutrient serves a specific physiological function, and its absence manifests as distinct clinical symptoms.

Statement 1 is Correct: Scurvy is caused by a deficiency of Vitamin C (Ascorbic acid). Vitamin C is essential for the synthesis of collagen, a protein required for maintaining the integrity of blood vessels, skin, and gums. Consequently, symptoms include bleeding gums, internal bleeding, and the slow healing of wounds.
Statement 2 is Incorrect: Weak bones and tooth decay are symptoms associated with a deficiency of Calcium or Vitamin D. A deficiency of Iron leads to Anaemia, which is characterized by general weakness, fatigue, and pale skin due to insufficient haemoglobin production.
Statement 3 is Incorrect: Poor vision and loss of vision in darkness (Night Blindness) are classic symptoms of Vitamin A deficiency. Rickets is caused by a deficiency of Vitamin D, which results in soft, weak, and deformed bones (such as bowed legs) in children.

Key Takeaway: It is crucial to distinguish between specific vitamin deficiencies: Vitamin A deficiency causes Night Blindness; Vitamin C deficiency causes Scurvy (bleeding gums); and Vitamin D deficiency causes Rickets (bone deformities).

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?

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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?

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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?

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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 (a).

Explanation

Statement 1 is Correct: Scurvy is caused by a deficiency of Vitamin C (Ascorbic acid). Vitamin C is essential for the synthesis of collagen, a protein required for maintaining the integrity of blood vessels, skin, and gums. Consequently, symptoms include bleeding gums, internal bleeding, and the slow healing of wounds.
Statement 2 is Incorrect: Weak bones and tooth decay are symptoms associated with a deficiency of Calcium or Vitamin D. A deficiency of Iron leads to Anaemia, which is characterized by general weakness, fatigue, and pale skin due to insufficient haemoglobin production.
Statement 3 is Incorrect: Poor vision and loss of vision in darkness (Night Blindness) are classic symptoms of Vitamin A deficiency. Rickets is caused by a deficiency of Vitamin D, which results in soft, weak, and deformed bones (such as bowed legs) in children.