Best 80+ Vitamins MCQs – General Science – Competitive Exams
1. Vitamins were discovered by _______.
Correct Answer: A. Casimir Funk
Explanation: Vitamins are organic compounds essential for normal growth and health, and they were discovered by Casimir Funk.
2. Vitamins were discovered by Casimir Funk in the year of _____.
Correct Answer: D. 1912
Explanation: The year 1912 marks the discovery of vitamins by Casimir Funk, who identified them as vital dietary substances.
3. Which type of vitamins can be stored in the body?
Correct Answer: B. Fat-soluble
Explanation: Fat-soluble vitamins are vitamins that dissolve in fat and can be stored in the body for future use.
4. Which vitamins are used when the body needs them, and excess is stored for future use?
Correct Answer: C. Fat-soluble vitamins
Explanation: Fat-soluble vitamins are stored in body fat and the liver and are used when the body requires them.
5. Examples of fat-soluble vitamins are _____.
Correct Answer: A. A, D, E, and K
Explanation: Fat-soluble vitamins include vitamins A, D, E, and K, which are absorbed along with dietary fats.
6. Which vitamins are soluble in water?
Correct Answer: D. Water-soluble vitamins
Explanation: Water-soluble vitamins dissolve in water and circulate freely in the body.
7. Which vitamins cannot be stored in significant amounts in the body?
Correct Answer: B. Water-soluble
Explanation: Water-soluble vitamins are not stored in large amounts and must be taken regularly.
8. Which vitamins are used by the body as needed, and excess amounts are excreted through urine?
Correct Answer: C. Water-soluble vitamins
Explanation: Water-soluble vitamins are used immediately, and excess amounts are removed from the body through urine.
9. Which vitamins need to be consumed regularly?
Correct Answer: B. Water-soluble
Explanation: Water-soluble vitamins must be consumed daily because the body cannot store them.
10. Examples of water-soluble vitamins are ______.
Correct Answer: C. Vitamin B and C
Explanation: Water-soluble vitamins include Vitamin B complex and Vitamin C.
11. Deficiency of Vitamin A results in ______.
Correct Answer: B. Night blindness
Explanation: Vitamin A is a fat-soluble vitamin essential for vision and eye health. Lack of Vitamin A affects vision, especially in low light, causing night blindness.
12. In severe cases, deficiency of Vitamin A results in _______.
Correct Answer: C. Permanent blindness
Explanation: Vitamin A helps maintain the cornea and retina of the eye. Severe Vitamin A deficiency can cause irreversible eye damage, leading to permanent blindness.
13. Excessive intake of vitamin ___ can be toxic and lead to bone fractures.
Correct Answer: A. A
Explanation: Vitamin A is stored in the body’s fat tissues. Excessive Vitamin A intake can weaken bones and increase the risk of fractures.
14. Excessive intake of vitamin ____ can be toxic and lead to birth defects.
Correct Answer: A. A
Explanation: Vitamin A plays a vital role in growth and development. High doses of Vitamin A during pregnancy can cause birth defects.
15. Vitamin A is also known as _____.
Correct Answer: D. Retinol
Explanation: Retinol is the chemical name of Vitamin A. It is essential for vision, immunity, and skin health.
16. Which of the following are sources of Vitamin A?
Correct Answer: C. Green vegetables, milk and its products, liver, eggs, and carrots
Explanation: Vitamin A is obtained from plant and animal sources. Green vegetables, dairy products, liver, eggs, and carrots are rich sources.
17. Health benefits of Vitamin A include ________.
Correct Answer: C. Component of light-sensitive pigments in eye and epithelial tissue maintenance
Explanation: Vitamin A forms visual pigments in the retina and maintains epithelial tissues, supporting vision and healthy skin.
18. Carotenoids are related to _____.
Correct Answer: A. Vitamin A
Explanation: Carotenoids are plant pigments that act as precursors and are converted by the body into Vitamin A.
19. Carrot is a good source of ______.
Correct Answer: D. Vitamin A
Explanation: Carrots are rich in beta-carotene, a carotenoid that the body converts into Vitamin A.
20. Genetically modified rice is created after the insertion of Vitamin ___ genes.
Correct Answer: D. A
Explanation: Genetically modified rice, known as Golden Rice, contains inserted Vitamin A genes to help prevent Vitamin A deficiency.
21. Deficiency of Vitamin D results in______.
Correct Answer: C. Rickets, bone deformity, and osteomalacia
Explanation: Vitamin D is a fat-soluble vitamin essential for calcium absorption and bone health. Its deficiency causes rickets in children, bone deformities, and osteomalacia in adults.
22. Osteomalacia refers to ______.
Correct Answer: A. Softening of bones
Explanation: Osteomalacia means softening of bones caused by inadequate mineralization due to Vitamin D deficiency.
23. High dosage of Vitamin D causes ______.
Correct Answer: B. Excessive calcium deposits and mental retardation
Explanation: Vitamin D in excess increases calcium absorption. High doses cause calcium accumulation in tissues, leading to toxicity and mental complications.
24. Dairy products, eggs, cod liver oil, and UV-irradiated foods are good source of Vitamin ____?
Correct Answer: C. D
Explanation: Vitamin D is obtained from foods like dairy products, eggs, cod liver oil, and also synthesized in the skin through UV radiation.
25. A major health benefit of Vitamin D is _____.
Correct Answer: A. Calcium absorption and bone formation
Explanation: Vitamin D promotes calcium absorption in the intestine, helping in proper bone formation and skeletal strength.
26. A natural and important source of Vitamin D is:
Correct Answer: C. Sunlight
Explanation: Sunlight enables the skin to synthesize Vitamin D naturally, making it the most important natural source.
27. Which vitamin serves as a hormone precursor?
Correct Answer: C. Vitamin D
Explanation: Vitamin D acts like a hormone precursor and regulates calcium and phosphorus metabolism in the body.
28. Which vitamin strengthens bones and teeth?
Correct Answer: D. Vitamin D
Explanation: Vitamin D improves calcium absorption, which is essential for strengthening bones and teeth.
29. Which vitamin regulates blood calcium levels?
Correct Answer: D. Vitamin D
Explanation: Vitamin D maintains calcium balance in the blood by regulating absorption and storage.
30. High dosage of vitamin ___ can cause kidney disease.
Correct Answer: D. D
Explanation: Excess Vitamin D causes high calcium levels, which can lead to calcium deposits in kidneys and kidney disease.
31. Which of the following is considered an anti-cancer vitamin?
Correct Answer: C. Vitamin D
Explanation: Vitamin D is a fat-soluble vitamin that regulates cell growth and differentiation. It has anti-cancer properties and helps prevent uncontrolled cell division.
32. Vitamin ___ is also known as Tocopherol.
Correct Answer: D. E
Explanation: Tocopherol is the chemical name of Vitamin E, which is a fat-soluble antioxidant vitamin.
33. Sources of Vitamin E include _____.
Correct Answer: A. Margarine, seeds, green leafy vegetables, and nuts
Explanation: Vitamin E is an antioxidant vitamin mainly found in plant-based foods such as seeds, nuts, green leafy vegetables, and vegetable oils.
34. The main health benefit of Vitamin ___ is antioxidant activity.
Correct Answer: D. Vitamin E
Explanation: Vitamin E acts as a powerful antioxidant, protecting body cells from oxidative damage caused by free radicals.
35. Deficiency of Vitamin E results in _____.
Correct Answer: B. Sterility
Explanation: Vitamin E is essential for reproductive health. Its deficiency can impair fertility, leading to sterility.
36. Deficiency of Vitamin E can also cause _____.
Correct Answer: A. Anemia
Explanation: Vitamin E protects red blood cells from oxidative damage. Its deficiency may cause hemolysis, leading to anemia.
37. Deficiency of Vitamin E may result in damage to the _____.
Correct Answer: C. Retina
Explanation: Vitamin E deficiency can cause oxidative damage to retinal cells, affecting vision.
38. High dosage of Vitamin E may be _____.
Correct Answer: C. Toxic
Explanation: Although Vitamin E is beneficial, excessive intake can have toxic effects and disturb normal body functions.
39. Deficiency of vitamin ____ results in muscle weakness and increased fragility of RBCs.
Correct Answer: D. E
Explanation: Vitamin E maintains muscle integrity and protects red blood cells. Its deficiency causes muscle weakness and fragile RBCs.
40. The mineral that has a sparing effect on Vitamin E is _____.
Correct Answer: D. Selenium
Explanation: Selenium is a trace mineral that works synergistically with Vitamin E to protect cells from oxidative damage.