With reference to deficiency diseases, consider the following statements: 1. Beriberi is caused by the deficiency of Vitamin B1. 2. Rickets results in the hardening of bones. 3. Goiter is characterized by the swelling of glands in the neck. Which of the statements given above are correct?

Correct Option The correct option is (c). Explanation Deficiency diseases are pathological conditions caused by the lack of specific essential nutrients, such as vitamins and minerals, in the diet over a prolonged period. Statement-wise Analysis - Statement 1 is Correct: Beriberi is caused by a deficiency of Vitamin B1 (Thiamine). Its symptoms typically include weak muscles and severe fatigue. - Statement 2 is Incorrect: Rickets is caused by a deficiency of Vitamin D. It results in the softening and bending of bones, not hardening. The condition leads to skeletal deformities such as bowed legs. - Statement 3 is Correct: Goiter is caused by a deficiency of Iodine. It is characterized by the enlargement of the thyroid gland, which manifests as a visible swelling in the neck region. Key Takeaway Rickets involves the softening of bones due to Vitamin D deficiency, whereas Beriberi is caused by Vitamin B1 deficiency, and Goiter involves thyroid enlargement due to Iodine deficiency.

With reference to deficiency diseases, consider th... - NCERT Class 6 Science MCQ

Correct Option

The correct option is (c).

Explanation

Deficiency diseases are pathological conditions caused by the lack of specific essential nutrients, such as vitamins and minerals, in the diet over a prolonged period.

Statement-wise Analysis

Statement 1 is Correct: Beriberi is caused by a deficiency of Vitamin B1 (Thiamine). Its symptoms typically include weak muscles and severe fatigue.
Statement 2 is Incorrect: Rickets is caused by a deficiency of Vitamin D. It results in the softening and bending of bones, not hardening. The condition leads to skeletal deformities such as bowed legs.
Statement 3 is Correct: Goiter is caused by a deficiency of Iodine. It is characterized by the enlargement of the thyroid gland, which manifests as a visible swelling in the neck region.

Key Takeaway

Rickets involves the softening of bones due to Vitamin D deficiency, whereas Beriberi is caused by Vitamin B1 deficiency, and Goiter involves thyroid enlargement due to Iodine deficiency.

NCERT Class 6 Science — Chapter 2: Components of food

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