30 Vitamins Quiz Questions and Answers

Welcome to this Ultimate Vitamins Quiz! This MCQ quiz contains 30 multiple-choice selected questions covering all types of vitamins. These multiple-choice questions will not only test knowledge in vitamins but also enhance your knowledge through detailed explanations provided with each answer.

These 30 multiple-choice questions are very important for those who are biology students or preparing for the competitive exams like NEET, SSC CGL, RRB, UPSC, IES, etc. You will get the scorecard at the end of quiz which will tell about your performance. So, are you ready to test your knowledge and score 30/30? Let’s start from the question number 1.

1. Who coined the term “vitamin” in 1911?

A. Linus Pauling

B. Casimir Funk

C. Christiaan Eijkman

D. Albert Szent-Györgyi

In 1911, a Polish biochemist, Casimir Funk coined the term “Vitamin”, while researching a cure for beriberi.

2. Which was the first vitamin to be discovered?

A. Vitamin B₁

B. Vitamin A

C. Vitamin D

D. Vitamin C

Vitamin B1 (Thiamine) was the first vitamin to be discovered in 1912 by a Polish biochemist Casimir Funk, who coined the term “vitamine” (vital amine). It was identified while studying beriberi, a disease caused by its deficiency. Later, other vitamins (A, C, D, etc.) were discovered, but vitamin B1 holds the distinction of being the first.

3. Which vitamin is synthesized in the human body when exposed to sunlight?

A. Vitamin A

B. Vitamin B12

C. Vitamin C

D. Vitamin D

Vitamins cannot be synthesized in the human body except vitamins D which can be synthesized in the skin when exposed to UV-B sunlight. It helps in calcium absorption and bone health.

4. Which of the following vitamins are water-soluble vitamins?

A. Vitamin A

B. Vitamin B

C. Vitamin E

D. Vitamin K

Vitamins B, and C are water-soluble vitamins, while vitamins A, D, E, and K are fat-soluble vitamins. Water-soluble vitamins dissolve in water and are not stored in the human body. They must be consumed regularly. Excess water-soluble vitamins are typically excreted through the urine.

5. Which of the following vitamin is also known as anti-infection vitamin?

A. Vitamin C

B. Vitamin K

C. Vitamin B12

D. Vitamin A

Fat-soluble vitamin A (Retinol) is known as anti-infection vitamin. It was discovered by Elmer McCollum and Marguerite Davis in 1913, but was isolated by Holmes. Vitamin A plays a crucial role in supporting the immune system, helping the body fight off infections. It also helps maintain healthy skin and mucous membranes, which act as barriers against pathogens.

6. Who discovered Vitamin C in 1930?

A. Linus Pauling

B. Albert Szent-Györgyi

C. Casimir Funk

D. Frederick Hopkins

A Hungarian biochemist, Albert Szent-Györgyi, discovered Vitamin C (chemically known as Ascorbic acid) and won the Nobel Prize in 1937. Vitamin C is a water-soluble vitamin essential for collagen synthesis, wound healing, and immunity.

7. Deficiency of which vitamin causes night blindness?

A. Vitamin B12

B. Vitamin E

C. Vitamin A

D. Vitamin C

Deficiency of Vitamin A (chemically known as Retinol) cause diseases like night blindness (Nyctalopia) and, in severe cases, xerophthalmia (dry eyes).

8. Beri-Beri is caused by the deficiency of which vitamin?

A. Vitamin B1 (Thiamine)

B. Vitamin B2 (Riboflavin)

C. Vitamin B3 (Niacin)

D. Vitamin B6 (Pyridoxine)

Beri-Beri is a nervous system disorder caused by Vitamin B1 (Thiamine) deficiency. It leads to muscle weakness and cardiovascular problems.

9. Which vitamin is essential for blood clotting?

A. Vitamin K

B. Vitamin B₁₂

C. Vitamin D

D. Vitamin B₃

Vitamin K (Phylloquinone or Naphthoquinone) is synthesized by bacteria in the colon. It is essential for blood clotting. Vitamin K is commonly known as antihemorrhagic vitamin. It is essential for synthesis of prothrombin in liver. Vitamin K is discovered by Danish Scientist Dam in 1935.

10. Which of the following vitamins is known as Hesperidin?

A. Vitamin B₁

B. Vitamin C

C. Vitamin P

D. Vitamin K

Vitamin P is chemically known as hesperidin, a type of bioflavonoid. It helps maintain normal capillary resistance and supports blood vessel integrity. A deficiency of vitamin P may lead to increased capillary fragility, which can result in internal bleeding or easy bruising.

11. Pellagra is caused by deficiency of which vitamin?

A. Vitamin B₂

B. Vitamin B₃

C. Vitamin B₁

D. Vitamin B₆

Pellagra is a disease caused by a deficiency of niacin, also known as Vitamin B₃. Therefore, it is also called anti-pellagra vitamin. Pellagra is characterized by a classic triad of symptoms: dermatitis (skin rash), diarrhea, and dementia. In severe cases, it can even lead to death if untreated.

12. Which vitamin is known as the “anti-sterility vitamin” or “beauty vitamin”?

A. Vitamin A

B. Vitamin D

C. Vitamin E

D. Vitamin C

Vitamin E (Tocopherol or Tocotrienol) is commonly called the anti-sterility vitamin or beauty vitamin because it removes scars and wrinkles of skin. Deficiency of vitamin E may cause sterility (impotence) and muscular atrophy. Its daily requirement is about 15 mg.

13. Scurvy is caused by the deficiency of which vitamin?

A. Vitamin B1

B. Vitamin A

C. Vitamin D

D. Vitamin C

Scurvy is caused by Vitamin C deficiency, leading to bleeding gums, joint pain, and poor wound healing.

14. Which vitamin is essential for the absorption of calcium and phosphorus in the intestines?

A. Vitamin A

B. Vitamin C

C. Vitamin D

D. Vitamin B12

Vitamin D is essential for the regulation of calcium and phosphorus levels in the blood by promoting their absorption from the food in the intestines, and it also promotes re-absorption of calcium in the kidneys. Vitamin D plays a crucial role in bone health by promoting bone formation and mineralization, which is essential for developing a strong and healthy skeleton.

15. Which vitamin is necessary for the formation of collagen?

A. Vitamin C

B. Vitamin A

C. Vitamin D

D. Vitamin K

Vitamin C is essential for activating the enzyme polyhydroxylase, which promotes the formation of collagen. The synthesis of collagen is vital for skin, blood vessels, and connective tissues.

16. Which of the following is NOT a function of Vitamin B12?

A. DNA synthesis

B. Red blood cell formation

C. Nervous system function

D. Night vision

Night vision is associated with Vitamin A, not B12. Vitamin B12 is crucial for DNA synthesis, RBC formation, and nerve function.

17. Which of the following vitamins acts as an antioxidant?

A. Vitamin A

B. Vitamin C

C. Vitamin E

D. All of the above

Vitamins A, C, and E have antioxidant properties, protecting cells from oxidative damage. Vitamin C, also known as ascorbic acid, is a powerful water-soluble antioxidant that helps protect cells from damage caused by free radicals.

18. Which of the following vitamins is known as anti-rickets vitamin?

A. Vitamin A

B. Vitamin B1

C. Vitamin D

D. Vitamin E

Vitamin D is also known as sunshine vitamin or anti-rickets vitamin.
Rickets is a bone disorder in children caused by Vitamin D deficiency, leading to soft and deformed bones.

19. Which of the following is only vitamin which is not found in vegetables?

A. Vitamin B1 (Thiamine)

B. Vitamin B6 (Pyridoxine)

C. Vitamin B12 (Cobalamin)

D. Vitamin C

Vitamin B12 (Cobalamin) is a cobalt containing vitamin which is found in animal protein, such as meat, liver, and fish. This vitamin is not found in the vegetables. Vitamin B12 is essential for the proper functioning of the nervous system, red blood cell production, and DNA synthesis.

20. Which vitamin is not found in the milk, bread, and eggs?

A. Vitamin C

B. Vitamin A

C. Vitamin K

D. Vitamin E

Vitamin C, also known as Ascorbic acid, is absent in milk, eggs, and bread. Source of vitamin C are all citrus fruits, such as almond, orange, and lemon.

21. Which of the following vitamins is essential for the synthesis of DNA and RNA?

A. Vitamin B9 (Folic Acid)

B. Vitamin B12 (Cobalamin)

C. Vitamin B7 (Biotin)

D. Both A and B

Both Vitamin B9 (Folic Acid) and Vitamin B12 (Cobalamin) are essential for DNA and RNA synthesis.

22. Which of the following vitamins are stored in the liver?

A. Vitamin A

B. Vitamin D and Vitamin E

C. Vitamin B12

D. All of the above

The liver primarily stores fat-soluble vitamins A, D, E, and K, along with the water-soluble vitamin B12. The liver also stores glycogen (stored form of glucose) and other essential nutrients like iron and copper.

23. Which vitamin helps in the absorption of iron in the intestines?

A. Vitamin A

B. Vitamin B

C. Vitamin D

D. Vitamin C

Vitamin C significantly helps for the absorption of iron in the intestine.

24. Which vitamin deficiency leads to “Hemolytic Anemia” in premature infants?

A. Vitamin A

B. Vitamin C

C. Vitamin E

D. Vitamin K

The deficiency of Vitamin E may cause hemolytic anemia in which red blood cells are prematurely destroyed. This commonly occurs in the premature infants due to their low body fat, underdeveloped gastrointestinal systems, and limited vitamin E stores.

25. Which of the following vitamin is destroyed by excessive cooking?

A. Vitamin A

B. Vitamin B1

C. Vitamin E

D. Vitamin C

Vitamin C is the vitamin easily destroyed by excessive cooking because it is a water-soluble vitamin that is sensitive to heat and can degrade at relatively low temperatures.

26. Which vitamin is essential for the prevention of neural tube defects in fetuses?

A. Vitamin B12 (Cobalamin)

B. Vitamin B9 (Folic Acid)

C. Vitamin C

D. Vitamin D

Folic Acid (Vitamin B9) is essential during pregnancy to prevent neural tube defects in developing fetuses.

27. Which vitamin is also known as vitamin H?

A. Vitamin B1

B. Vitamin B7

C. Vitamin B5

D. Vitamin B3

Vitamin B7, also chemically known as Biotin, is known as vitamin H. It is a water-soluble vitamin belonging to the B-vitamin family. Biotin plays an important role in energy production, fat metabolism, and is essential for healthy skin, hair, and nails.

28. Which vitamin acts as a coenzyme for the synthesis of proteins essential for the formation and maturation of red blood cells (RBCs)?

A. Vitamin B₁

B. Vitamin B₉

C. Vitamin K

D. Vitamin D

Vitamin B₉, also known as folic acid, acts as a coenzyme for the synthesis of proteins, and is crucial for the formation and maturation of red blood cells in the bone marrow. It promotes the synthesis of thymidilic acid and DNA.

29. Which vitamin was discovered by studying “polished” rice and its effects on health?

A. Vitamin C

B. Vitamin D

C. Vitamin B₁

D. Vitamin B₃

Thiamine deficiency was noticed in people eating polished rice, leading to the discovery of Vitamin B₁.

30. Which of these vitamins prevents oxidation of polyunsaturated fatty acids in cell membranes?

A. Vitamin A

B. Vitamin K

C. Vitamin D

D. Vitamin E

Vitamin E plays an important role in preventing the oxidation of polyunsaturated fatty acids within cell membranes. It acts as an antioxidant, which protects these lipids from damage caused by free radicals.