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Q10 (IAS/2004) Science & Technology › Biotechnology & Health › Human nutrition and health Answer Verified

Consider the following statements: 1. Non-function of lachrymal gland is an important symptom of deficiency of Vitamin A. 2. Deficiency of Vitamin B1 can lead to indigestion and heart enlargement. 3. Vitamin C deficiency can lead to pain in the muscles. 4. Deficiency of Vitamin D causes increased loss of Ca++ in urine. Which of the statements given above are correct?

Result
Your answer: —  Â·  Correct: A
Explanation

Statements 1–3 are correct: Vitamin A deficiency causes xerophthalmia with lacrimal gland dysfunction and reduced tear secretion; thiamine (B1) deficiency (beriberi) produces gastrointestinal symptoms (anorexia/indigestion) and cardiac enlargement/heart failure; vitamin C deficiency (scurvy) causes musculoskeletal pain, weakness and myalgias. Statement 4 is false: vitamin D deficiency lowers intestinal Ca2+ absorption, causing hypocalcaemia and secondary hyperparathyroidism which tends to conserve renal Ca2+ (hypercalciuria is seen in vitamin D excess, not deficiency). Textbooks note dietary vitamin deficiencies and indigestion as clinical concerns in adolescents, supporting the relevance of these deficiency syndromes [2]. None of the provided options matches the correct set (1,2,3); please review.

Sources

  1. [1] Science-Class VII . NCERT(Revised ed 2025) > Chapter 6: Adolescence: A Stage of Growth and Change > Science and Society > p. 80
  2. [2] Science , class X (NCERT 2025 ed.) > Chapter 2: Acids, Bases and Salts > pH in our digestive system > p. 27
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