100 BCQs about Vitamins

1. Vitamins BCQs
By
Sajid Ali Talpur

2. 1. Bitot spot occurs in the deficiency of:
a) vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
2. A 30 years old patient presents with confusion, ataxia, ophthalmoplegia and personality
changes. He is most likely suffering from the deficiency of:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
3. Which vitamin is given to newborn after the birth?
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
4. The sunlight is necessary for the formation of:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T

3. 5. Which vitamin derivatives may be used in the treatment of acne:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
1 B 4 C
2 D 5 B
3 E
6. Which vitamin is activated in Kidney:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
7. Which vitamin is required in the formation of collagen?
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
8. Which of the following vitamin may prevent blindness?
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
9. Hypercalcemia and hypercalceuria are seen in the excess of:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T

4. 10. Benign intracranial hypertension occurs as a result of excess of:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
6 C 9 C
7 A 10 B
8 B
11. It plays its role in the maintenance of differentiated epithelia and reproduction
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
12. It increases intestinal absorption of phosphorus and calcium:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
13. granulomatous diseases may result in the excess of:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
14. A 25 Years old lady gives birth to a baby with cleft plate and cardiac anomalies. The most
likely vitamin or its derivatives responsible is.
a) Vitamin C
b) Vitamin A
c) Vitamin D

5. d) Thiamine
e) N.O.T
15. Hypocalcmic tetany occurs in the deficiency of:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
11 B 14 B
12 C 15 C
13 C
16. A 7 years old child presents with bone pain and bowing of legs. He is most likely suffering
from the deficiency of:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
17. It facilitates the absorption of iron:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
18. It acts as a cofactor for homocysteine methyltransferase:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
19. Scurvy occurs in the deficiency of:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T

6. 20. It is required by dopamine β hydroxylase for the conversion of dopamine into
Norepinephrine
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
16 C 19 A
17 A 20 A
18 E
21. Wernike-Korsakoff syndrome occurs in the deficiency of:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
22. A 40 years old patient presents with swollen gums, bruises and petechiae. He might be
suffering from the deficiency of:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
23. It acts as a cofactor for various dehydrogenase enzyme reactions.
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
24. Wound healing is impaired in the deficiency of:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine

7. e) N.O.T
25. It is required in the hydroxylation of proline and lysine.
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
21 D 24 A
22 A 25 A
23 D
26. Osteomalacia occurs due to the deficiency of:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
27. Kertatomalacia may occur due to the deficiency of:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
28. Corkscrew hair may be seen in the deficiency of:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
29. Its precursor is found in skin:
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine

8. e) N.O.T
30. It is the constituent of visual pigments.
a) Vitamin C
b) Vitamin A
c) Vitamin D
d) Thiamine
e) N.O.T
26 C 29 C
27 B 30 B
28 A
31. A 23 years old man suffering from T.B is taking isoniazid along with other Anti tuberculous
drugs. The deficiency of which vitamin is most likely to occur.
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T
32. It is regarded as pellagra preventive vitamin:
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T
33. Its deficiency is characterized by increased homocysteine but normal methylmalonic acid.
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
34. Its deficiency results in the increase in PT and aPTT:
a) Vitamin B6
b) Vitamin B9
c) Vitamin K
d) Vitamin E
e) N.O.T

9. 35. It prevents neural tube defects:
a) Vitamin B5
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
31 B 34 C
32 C 35 B
33 B
36. A 40 years old lady presents with diarrhea, dementia and dermatitis. She is most likely
suffering from the deficiency of:
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T
37. The manifestation with Diphyllobothrium latum may result in the deficiency of:
a) Vitamin B12
b) Vitamin B9
c) Vitamin B1
d) Vitamin E
e) N.O.T
38. Broad collar rash may be seen in the deficiency of:
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T
39. Gluten enteropathy usually results in the deficiency of:
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid

10. e) N.O.T
40. It may be used to raise the levels of HDL.
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T
36 C 39 D
37 A 40 C
38 C
41. It is required by transaminases (ALT and AST)
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T
42. Terminal ileum resection will result in the deficiency of:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
43. Dermatitis, alopecia and adrenal insufficiency may be seen in:
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T
44. It helps in the synthesis of various neurotransmitters like serotonin, epinephrine, dopamine,
GABA etc:
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T

11. 45. Sideroblastic anemia may occur in the deficiency of:
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T
41 B 44 B
42 C 45 B
43 E
46. It is found in leafy green vegetables:
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T
47. It acts as a coenzyme for 1 carbon transfer/methylation reactions:
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T
48. Its deficiency leads to paresthesia and subacute combined degeneration:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
49. It is only found in animal products.
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T

12. 50. Its deficiency causes megaloblastic anemia without neurological symptoms:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
46 D 49 C
47 D 50 B
48 C
51. Its deficiency causes megaloblastic anemia with neurological symptoms:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
52. Since the neonates have sterile intestine. This may lead to the deficiency of:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin K
e) N.O.T
53. Alcoholism and pregnancy lead to the deficiency of:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
54. Its deficiency is charachterized by both the increase in homocysteine and methylmalonic
acid:
a) Vitamin B6
b) Vitamin B9

13. c) Vitamin B12
d) Vitamin E
e) N.O.T
55. The most common vitamin deficiency in the USA is:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
51 C 54 C
52 D 55 B
53 B
56. A Nine years old child presents with scaling and fissures at the corner of mouth along with
inflammation of lips. He is most likely suffering from the deficiency of:
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T
57. It may be used to treat dyslipidemia:
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T
58. It acts as a cofactor for homocysteine methyltransferase.
a) Vitamin B6
b) Vitamin K
c) Vitamin B12
d) Vitamin E
e) N.O.T
59. It is used in the synthesis of nitrogenous bases in DNA and RNA:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12

14. d) Vitamin E
e) N.O.T
60. Its synthesis requires vitamin B2 and B6.
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T
56 A 59 B
57 C 60 C
58 C
61. Its prolonged deficiency may result in irreversible nerve damage.
a) Vitamin B6
b) Vitamin B9
c) Cobalamin
d) Vitamin E
e) N.O.T
62. It is the derivative of tryptophan.
a) Riboflavin
b) Pyridoxine
c) Niacin
d) Folic acid
e) N.O.T
63. Warfarin is the antagonist of:
a) Vitamin B6
b) Vitamin B9
c) Vitamin K
d) Vitamin E
e) N.O.T
64. Gastrectomy will result in the anemia due to the deficiency of:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12

15. d) Vitamin E
e) N.O.T
65. It acts as an antioxidant:
a) Vitamin B6
b) Vitamin B4
c) Vitamin B12
d) Vitamin E
e) N.O.T
61 C 64 C
62 C 65 D
63 C
66. Methotrexate results in the deficiency of:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
67. Its deficiency is associated with hemolytic anemia:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
68. Anti intrinsic factor antibodies found in pernicious anemia are associated with the
deficiency of:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
69. It can enhance the anticoagulant effects of warfarin:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T

16. 70. It is not present in breast milk and its deficiency may occur after prolonged used of broad
spectrum antibiotics:
a) Vitamin B6
b) Vitamin K
c) Vitamin B7
d) Vitamin E
e) N.O.T
66 B 69 D
67 D 70 B
68 C
71. Beri Beri occurs due to the deficiency of:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
72. It is a fat soluble vitamin:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
73. It is synthesized by intestinal flora
a) Vitamin C
b) Vitamin D
c) Vitamin A
d) Tochopherol
e) N.O.T
74. Also known as cobalamin
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T

17. 75. It is the component of flavins (FAD and FMN)
a) Vitamin B6
b) Vitamin B9
c) Vitamin B2
d) Vitamin E
e) N.O.T
71 E 74 C
72 D 75 C
73 E
76. It is the constituent of NAD and NADP.
a) Vitamin B6
b) Vitamin B9
c) Vitamin B3
d) Vitamin D
e) N.O.T
77. Tochopherol is also known as
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
78. Biotin is also known as
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
79. Pyridoxine is also known as:
a) Vitamin B6
b) Vitamin B3
c) Vitamin B8
d) Vitamin E
e) N.O.T

18. 80. Carotenes are the precursors of:
a) Vitamin C
b) Vitamin D
c) Vitamin A
d) Vitamin E
e) N.O.T
76 C 79 A
77 D 80 C
78 E
81. Thiamine is also known as:
a) Vitamin B6
b) Vitamin B1
c) Vitamin B2
d) Vitamin E
e) N.O.T
82. It is an essential component of CoA:
a) Vitamin B3
b) Vitamin B5
c) Vitamin B1
d) Vitamin E
e) N.O.T
83. Bran is abundant in
a) Vitamin B1
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
84. It was the first vitamin to be discovered:
a) Vitamin A
b) Vitamin C
c) Vitamin B12
d) Vitamin E

19. e) N.O.T
85. Niacin is also known as:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B2
d) Vitamin E
e) N.O.T
81 B 84 A
82 B 85 E
83 A
86. The first symptom to be appeared in the niacin deficiency is:
a) Diarrhea
b) Dermatitis
c) Dementia
d) Alopecia
e) N.O.T
87. The earliest manifestations of vitamin E deficiency occur in:
a) RBC
b) WBC
c) Platelets
d) Skin
e) GIT
88. A patient has malabsorption syndrome with steatorrhea. He may suffer the deficiency of:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
89. Which vitamin is usually given along with polio vaccine:
a) Vitamin A
b) Vitamin D
c) Vitamin C
d) Vitamin E

20. e) N.O.T
90. Carcinoid syndrome may result in the deficiency of:
a) Vitamin B5
b) Vitamin B3
c) Vitamin B12
d) Vitamin E
e) N.O.T
86 A 89 A
87 A 90 B
88 D
91. Its deficiency may result in peripheral neuropathy:
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
92. A 22 year old primipara has given birth to child with spina bifida occulta. She might have
forgotten to take ______ during pregnancy
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
93. It is also known as vitamin H
a) Vitamin B6
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
94. A 17 years old boy has wound on leg. Doctor recommends to take oranges so as to fulfill the
requirements of:
a) Vitamin A
b) Ascorbic acid
c) Vitamin B12
d) Vitamin E

21. e) N.O.T
95. Its excess may result in hepatic toxicity, arthralgias and pseudotumor cerebri.
a) Vitamin D
b) Vitamin A
c) Vitamin B12
d) Vitamin K
e) N.O.T
91 A 94 B
92 B 95 B
93 E
96. Antidote of warfarin is:
a) Vitamin A
b) Vitamin K
c) Vitamin C
d) Vitamin E
e) N.O.T
97. RDA of Vitamin A in adults is:
a) 500 mcg/day
b) 900 mcg/day
c) 1500 mcg/day
d) 2000 mcg/day
e) N.O.T
98. Excessive ingestion of raw egg white may result in the deficiency of:
a) Vitamin B7
b) Vitamin B9
c) Vitamin B12
d) Vitamin E
e) N.O.T
99. Pantothenic acid is also known as:
a) Vitamin B2
b) Vitamin B3
c) Vitamin B6
d) Vitamin D
e) N.O.T

22. 100.Recommended daily dose of folic acid in pregnancy is:
a) 0.0 mcg
b) 0.4 mcg
c) 4 mcg
d) 40 mcg
e) 400 mcg
96 B 99 E
97 B 100 E
98 A
References:
TAO LE, VIKAS BHUSHAN, MATTHEW SOCHAT. FIRST AID FOR THE USMLE STEP 1 25TH
UNIVERSARY EDITION
WWW.WIKIPEDIA.COM
NOTE: Please notify me the mistakes if I have done any.