Deficiency disease caused due to deficiency of vitamin K is:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Increased blood clotting time
Vitamin K (found in green leafy vegetables) is needed by the liver to make the proteins that make blood clot. Its deficiency causes increased blood clotting time, so bleeding from a wound continues for longer.
NCERT (2026-27 edition):
Vitamins – Table 10.3 (sources and deficiency diseases)
| Sl. No. | Name of Vitamins | Sources | Deficiency diseases |
|---|---|---|---|
| 1. | Vitamin A | Fish liver oil, carrots, butter and milk | Xerophthalmia (hardening of cornea of eye) Night blindness |
| 2. | Vitamin B1 (Thiamine) | Yeast, milk, green vegetables and cereals | Beri beri (loss of appetite, retarded growth) |
| 3. | Vitamin B2 (Riboflavin) | Milk, eggwhite, liver, kidney | Cheilosis (fissuring at corners of mouth and lips), digestive disorders and burning sensation of the skin. |
| 4. | Vitamin B6 (Pyridoxine) | Yeast, milk, egg yolk, cereals and grams | Convulsions |
| 5. | Vitamin B12 | Meat, fish, egg and curd | Pernicious anaemia (RBC deficient in haemoglobin) |
| 6. | Vitamin C (Ascorbic acid) | Citrus fruits, amla and green leafy vegetables | Scurvy (bleeding gums) |
| 7. | Vitamin D | Exposure to sunlight, fish and egg yolk | Rickets (bone deformities in children) and osteomalacia (soft bones and joint pain in adults) |
| 8. | Vitamin E | Vegetable oils like wheat germ oil, sunflower oil, etc. | Increased fragility of RBCs and muscular weakness |
| 9. | Vitamin K | Green leafy vegetables | Increased blood clotting time |
Note: The same/similar question has been asked in different years by NTA as per the details given below:
| 2026 | 2025 | 2024 | 2023 | 2022 |
|---|---|---|---|---|
| – | – | – | 30-05 S2 24-05 S3 | – |