1. Which of the following is a water-soluble vitamin?
a) Vitamin A
b) Vitamin D
c) Vitamin C
d) Vitamin E
Answer: c) Vitamin C
2. What is the primary function of Vitamin A in the human body?
a) Helps in calcium absorption
b) Supports vision and immune function
c) Increases red blood cell production
d) Regulates metabolism
Answer: b) Supports vision and immune function
3. Deficiency of which vitamin can lead to rickets in children?
a) Vitamin A
b) Vitamin D
c) Vitamin K
d) Vitamin C
Answer: b) Vitamin D
4. Which vitamin is essential for the synthesis of collagen?
a) Vitamin A
b) Vitamin C
c) Vitamin E
d) Vitamin K
Answer: b) Vitamin C
5. Vitamin K is primarily involved in which of the following processes?
a) Bone mineralization
b) Blood clotting
c) Metabolism of carbohydrates
d) Vision
Answer: b) Blood clotting
6. Which vitamin deficiency is associated with scurvy?
a) Vitamin D
b) Vitamin C
c) Vitamin A
d) Vitamin E
Answer: b) Vitamin C
7. Which vitamin helps in the absorption of iron from the digestive tract?
a) Vitamin A
b) Vitamin B12
c) Vitamin C
d) Vitamin D
Answer: c) Vitamin C
8. Which of the following vitamins is synthesized in the skin upon exposure to sunlight?
a) Vitamin D
b) Vitamin A
c) Vitamin K
d) Vitamin B1
Answer: a) Vitamin D
9. Vitamin B12 is important for which of the following?
a) Nerve function and red blood cell production
b) Immune function
c) Vision and bone health
d) Blood clotting
Answer: a) Nerve function and red blood cell production
10. A deficiency in which vitamin can cause night blindness?
a) Vitamin D
b) Vitamin A
c) Vitamin E
d) Vitamin C
Answer: b) Vitamin A
11. Which vitamin is important for the metabolism of carbohydrates, fats, and proteins?
a) Vitamin B1 (Thiamine)
b) Vitamin A
c) Vitamin D
d) Vitamin C
Answer: a) Vitamin B1 (Thiamine)
12. Which of the following vitamins is a fat-soluble vitamin?
a) Vitamin B6
b) Vitamin C
c) Vitamin E
d) Vitamin B12
Answer: c) Vitamin E
13. What is the role of Vitamin E in the body?
a) Bone mineralization
b) Acts as an antioxidant
c) Regulates metabolism
d) Blood clotting
Answer: b) Acts as an antioxidant
14. Which vitamin is essential for proper thyroid function?
a) Vitamin A
b) Vitamin B12
c) Vitamin D
d) Vitamin E
Answer: c) Vitamin D
15. What disease is caused by a deficiency of Vitamin D?
a) Rickets
b) Pellagra
c) Beriberi
d) Scurvy
Answer: a) Rickets
16. Which of the following is a water-soluble vitamin involved in the formation of red blood cells?
a) Vitamin A
b) Vitamin B12
c) Vitamin K
d) Vitamin D
Answer: b) Vitamin B12
17. Which vitamin plays a key role in the proper functioning of the nervous system?
a) Vitamin C
b) Vitamin B6
c) Vitamin A
d) Vitamin D
Answer: b) Vitamin B6
18. A deficiency of which vitamin leads to the condition known as beriberi?
a) Vitamin B1 (Thiamine)
b) Vitamin B2 (Riboflavin)
c) Vitamin B3 (Niacin)
d) Vitamin C
Answer: a) Vitamin B1 (Thiamine)
19. The vitamin involved in the synthesis of red blood cells and DNA is:
a) Vitamin C
b) Vitamin B9 (Folate)
c) Vitamin B12
d) Vitamin E
Answer: b) Vitamin B9 (Folate)
20. Which of the following vitamins is found in high amounts in green leafy vegetables?
a) Vitamin K
b) Vitamin C
c) Vitamin B6
d) Vitamin D
Answer: a) Vitamin K
21. A deficiency in which vitamin is most likely to cause neurological symptoms such as numbness and tingling in the hands and feet?
a) Vitamin A
b) Vitamin B6
c) Vitamin B12
d) Vitamin C
Answer: c) Vitamin B12
22. What role does Vitamin A play in the body?
a) Involved in bone growth
b) Promotes vision, especially in low light
c) Aids in protein synthesis
d) Aids in calcium absorption
Answer: b) Promotes vision, especially in low light
23. Which vitamin is necessary for the production of coenzyme A?
a) Vitamin B5 (Pantothenic acid)
b) Vitamin C
c) Vitamin E
d) Vitamin A
Answer: a) Vitamin B5 (Pantothenic acid)
24. Which of the following vitamins is essential for skin health and wound healing?
a) Vitamin C
b) Vitamin A
c) Vitamin B1
d) Vitamin K
Answer: a) Vitamin C
25. Which vitamin helps in the conversion of carotene into Vitamin A?
a) Vitamin D
b) Vitamin B6
c) Vitamin E
d) Vitamin C
Answer: d) Vitamin C
26. Which of the following is a source of Vitamin D?
a) Carrots
b) Sunlight
c) Citrus fruits
d) Leafy vegetables
Answer: b) Sunlight
27. What is the primary role of Vitamin B7 (Biotin)?
a) Formation of collagen
b) Carbohydrate and fat metabolism
c) Bone health
d) Blood clotting
Answer: b) Carbohydrate and fat metabolism
28. Deficiency of which vitamin results in the condition called pellagra?
a) Vitamin B2
b) Vitamin B3 (Niacin)
c) Vitamin B6
d) Vitamin C
Answer: b) Vitamin B3 (Niacin)
29. Which vitamin is primarily responsible for the proper functioning of the immune system?
a) Vitamin D
b) Vitamin A
c) Vitamin E
d) Vitamin C
Answer: d) Vitamin C
30. The vitamin that helps in the synthesis of serotonin, a neurotransmitter, is:
a) Vitamin B12
b) Vitamin B3
c) Vitamin B6
d) Vitamin B1
Answer: c) Vitamin B6
