Q.7 Match List I with List II
| LIST I |
LIST II |
|
Vitamin |
|
Disorder |
| A. |
Vitamin-A |
I. |
Night blindness |
| B. |
Vitamin-D |
II. |
Scurvy |
| C. |
Vitamin-C |
III. |
Fat soluble vitamin |
| D. |
Vitamin-K |
IV. |
Blood clotting |
Choose the correct answer from the options given below:
- (A) – (I), (B) – (II), (C) – (III), (D) – (IV)
- (A) – (I), (B) – (III), (C) – (II), (D) – (IV)
- (A) – (I), (B) – (II), (C) – (IV), (D) – (III)
- (A) – (III), (B) – (IV), (C) – (I), (D) – (II)
Answer: Option 2 ((A) – (I), (B) – (III), (C) – (II), (D) – (IV), ID: 68019147826).
Vitamin A deficiency causes night blindness, Vitamin D is fat-soluble, Vitamin C deficiency leads to scurvy, and Vitamin K is essential for blood clotting—matching the correct pairings.
Option Analysis
-
A. Vitamin A → I. Night blindness: Retinol forms rhodopsin for low-light vision; deficiency impairs rod cell function.
-
B. Vitamin D → III. Fat soluble vitamin: Cholecalciferol (D3), ergocalciferol (D2) dissolve in lipids, stored in fat; deficiency causes rickets.
-
C. Vitamin C → II. Scurvy: Ascorbic acid needed for collagen hydroxylation; deficiency causes bleeding gums, poor wound healing.
-
D. Vitamin K → IV. Blood clotting: Phylloquinone (K1), menaquinone (K2) carboxylate clotting factors II, VII, IX, X.
Options Comparison Table
| Option |
A→ |
B→ |
C→ |
D→ |
Correct? |
| 1 |
I |
II |
III |
IV |
No (B,C wrong) |
| 2 |
I |
III |
II |
IV |
Yes |
| 3 |
I |
II |
IV |
III |
No (B,C,D wrong) |
| 4 |
III |
IV |
I |
II |
No (all wrong) |
Vitamin disorder matching list GATE Life Sciences tests core biochemistry knowledge for competitive exams. Correct pairing: A-I (night blindness), B-III (fat-soluble), C-II (scurvy), D-IV (blood clotting).
Correct Match Explanations
-
Vitamin A (retinol): Forms rhodopsin; night blindness first symptom as rods fail in dim light.
-
Vitamin D: Fat-soluble (A,D,E,K group); regulates calcium absorption; rickets/osteomalacia deficiency.
-
Vitamin C (ascorbate): Collagen synthesis cofactor; scurvy = capillary fragility, C1 hydroxylation block.
-
Vitamin K: γ-carboxyglutamate formation in Factors II, VII, IX, X; deficiency = hemorrhage.
Deficiency Symptoms Table
| Vitamin |
Primary Disorder |
Key Mechanism |
GATE Focus |
| A |
Night blindness |
Rhodopsin lack |
Vision |
| D |
Rickets |
Ca absorption |
Fat-soluble |
| C |
Scurvy |
Collagen defect |
Water-soluble |
| K |
Bleeding |
Clotting factors |
Blood clotting |
GATE Life Sciences strategy: Memorize A=night blindness, C=scurvy, K=clotting, D/E fat-soluble. Option 2 perfect match for vitamin disorder matching questions.
