घातक रक्ताल्पता (परनिशियस एनीमिया) किस विटामिन की कमी के कारण होता है?

Which vitamin is essential during childhood for maintaining normal vision and supporting immune function?

Scurvy occurs due to the deficiency of which of the following vitamins?

Match LIST-I with LIST-II regarding the forms of vitamins and associated conditions based on their descriptions: LIST-I (Term / Biochemical Form) A. Ergocalciferol (Vitamin D2) B. Cholecalciferol (Vitamin D3) C. Osteomalacia D. Ascorbic Acid (Vitamin C) LIST-II (Description / Source) I. A water-soluble vitamin that strengthens blood vessels and helps in the absorption of iron II. A condition in adults characterized by bone pain, weakness, and fragile bones that break easily III. A distinct form of Vitamin D that is found in plant sources IV. A distinct form of Vitamin D produced in human skin and found in animal sources Choose the correct answer from the options given below:

Match LIST-I (Deficiency Disease) with LIST-II (Deficient Micronutrient): LIST-I: A. Beriberi B. Pellagra C. Pernicious anemia D. Scurvy LIST-II: I. Vitamin C II. Vitamin B12 III. Vitamin B1 IV. Vitamin B3 Choose the correct answer from the options given below:

Match LIST-I (B-complex Vitamin) with LIST-II (Scientific Nomenclature): LIST-I: A. Vitamin B1 B. Vitamin B2 C. Vitamin B3 D. Vitamin B6 LIST-II: I. Niacin II. Pyridoxine III. Thiamine IV. Riboflavin Choose the correct answer from the options given below:

Arrange the following conditions in the progressive order of their occurrence due to Vitamin A deficiency, starting from the early stage to the most severe consequence: A. Keratomalacia B. Xerophthalmia C. Permanent blindness D. Night blindness Choose the correct answer from the options given below:

Vitamin D plays a key role in calcium metabolism. Deficiency of Vitamin D leads to:

Deficiency of Vitamin C (ascorbic acid) in the human body leads to: