Q.69 Match List I with List II
| LIST I | LIST II |
|---|---|
| A. Vitamin A B. Vitamin K C. Vitamin C D. Vitamin D |
I. Rickets II. Excessive bleeding III. Night blindness IV. Scurvy |
Choose the correct answer from the options given below:
- (A)–(I); (B)–(IV); (C)–(II); (D)–(III)
- (A)–(III); (B)–(II); (C)–(IV); (D)–(I)
- (A)–(IV); (B)–(III); (C)–(I); (D)–(II)
- (A)–(II); (B)–(III); (C)–(IV); (D)–(I)
Vitamin A deficiency causes night blindness, Vitamin K deficiency leads to excessive bleeding, Vitamin C deficiency results in scurvy, and Vitamin D deficiency causes rickets. The correct matching is option (B): (A)–(III); (B)–(II); (C)–(IV); (D)–(I).
Question Breakdown
This matching question tests knowledge of fat-soluble (A, D, K) and water-soluble (C) vitamin deficiencies and their hallmark diseases, common in exams like NEET/GATE Life Sciences.
Statement Analysis
A. Vitamin A → III. Night blindness
Vitamin A (retinol) is essential for rhodopsin synthesis in rod cells; deficiency impairs low-light vision.
B. Vitamin K → II. Excessive bleeding
Vitamin K is required for gamma-carboxylation of clotting factors II, VII, IX, X; deficiency impairs coagulation.[ from prior]
C. Vitamin C → IV. Scurvy
Vitamin C (ascorbic acid) is a cofactor for collagen hydroxylation; deficiency causes weak vessels and bleeding gums.[ from prior]
D. Vitamin D → I. Rickets
Vitamin D promotes Ca²⁺ absorption; deficiency in children leads to soft, deformed bones.[ from prior]Option Evaluation
Option Matching Validity Reason (A)–(I); (B)–(IV); (C)–(II); (D)–(III) A-Rickets; B-Scurvy; C-Bleeding; D-Night blindness False Swaps all pairs (e.g., Vitamin A ≠ Rickets). (A)–(III); (B)–(II); (C)–(IV); (D)–(I) A-Night blindness; B-Bleeding; C-Scurvy; D-Rickets True Matches classic deficiencies exactly. (A)–(IV); (B)–(III); (C)–(I); (D)–(II) A-Scurvy; B-Night blindness; C-Rickets; D-Bleeding False Mismatches vitamins to unrelated diseases. (A)–(II); (B)–(III); (C)–(IV); (D)–(I) A-Bleeding; B-Night blindness; C-Scurvy; D-Rickets False A and B incorrect (Vitamin A ≠ Bleeding). Vitamin deficiency diseases like night blindness (Vitamin A), excessive bleeding (Vitamin K), scurvy (Vitamin C), and rickets (Vitamin D) are high-yield for competitive exams—master the exact matching to ace questions.
Core Matchings Explained
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Vitamin A Deficiency: Impairs rhodopsin, causing night blindness (nyctalopia); progresses to xerophthalmia.
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Vitamin K Deficiency: Blocks clotting factor activation, leading to hemorrhage and excessive bleeding.[ from prior]
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Vitamin C Deficiency: Prevents collagen synthesis, resulting in scurvy with gingival bleeding and poor wound healing.[ from prior]
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Vitamin D Deficiency: Reduces bone mineralization in kids (rickets) or adults (osteomalacia).[ from prior]
Exam-Style Matching Table
Vitamin (List I) Disease (List II) Key Mechanism A. Vitamin A III. Night blindness Rhodopsin failure B. Vitamin K II. Excessive bleeding Clotting factor defect C. Vitamin C IV. Scurvy Collagen hydroxylation block D. Vitamin D I. Rickets Ca/P absorption impaired -
