Essential Biochemistry - Vitamins (Section 2)
1
Which of the following is the precursor for synthesis of tetrahydrofolate (THF)?
2
Which enzyme uses Biotin as a cofactor?
3
Which of the following is a key function of vitamin D?
پاسخ دهید(A)
Regulating calcium and phosphorus levels
4
Which of the following is synthesized with the help of Vitamin C?
5
What is the active form of vitamin B1?
6
Which of the following is the active form of vitamin B6?
7
All of the following vitamins have antioxidant property, except:
8
Which compound is synthesized with the help of vitamin C?
9
Where is thiamine (vitamin B1) absorbed primarily?
10
Which form of Vitamin A is transported in the blood?
11
Which vitamin is an antioxidant?
12
What is the role of Vitamin D in the intestine?
پاسخ دهید(A)
Increases calcium absorption
13
Which food is a good source of pantothenic acid (vitamin B5)?
15
What is the role of THF in folate metabolism?
16
Which of the following is a symptom of thiamine deficiency?
17
Which part of the eye is affected by Vitamin A deficiency?
18
Which of the following is required for the conversion of propionyl CoA to methylmalonyl CoA?
19
Which of the following vitamins would most likely become deficient in a person who developed a completely vegetarian lifestyle?
20
What is the first hydroxylation step in vitamin D activation?
21
What is the active form of Folic Acid?
22
What is the main function of Vitamin D?
پاسخ دهید(A)
Regulate calcium and phosphorus metabolism
23
In the context of vitamin A, what is 'retinal'?
24
Which form of vitamin A is involved in vision?
25
What are the sources of Vitamin D?
26
Functionally active form of vitamin D is:
پاسخ دهید(A)
1,25-dihydroxycholecalciferol
27
What is the source of Vitamin D3 (cholecalciferol)?
پاسخ دهید(A)
Animal sources and sun exposure
28
How much Biotin is the recommended daily dose for adults?
29
In what form is Vitamin B12 stored in the liver?
30
What is the main role of Riboflavin (Vitamin B2)?
31
Which of the following enzyme is used as a measure of thiamin deficiency?
32
Pellagra occurs due to deficiency of:
33
Where does the activation of Vitamin D occur?
34
What is the name of the enzyme that converts propionyl-CoA to methylmalonyl-CoA?
پاسخ دهید(B)
Propionyl-CoA carboxylase
35
Antihemorrhagic vitamin is:
36
Which of the following is a symptom of Vitamin A deficiency?
37
Which of the following is NOT a potential consequence of a vitamin D deficiency?
38
What is the role of Vitamin C (ascorbic acid) in collagen synthesis?
پاسخ دهید(A)
Hydroxylation of proline and lysine residues
39
Excretion of FIGLU in urine occurs in deficiency of:
40
Which of the following is a function of vitamin B6?
41
Which form of niacin is used to treat high cholesterol?
42
What is a symptom of vitamin C deficiency?
43
Which of the following is a function of Vitamin A?
44
What is the cause of cheilosis?
45
Which enzyme facilitates the first hydroxylation step in Vitamin D activation?
46
What is the name of the disease that occurs due to a thiamine deficiency?
47
How much vitamin C is recommended daily?
48
What is the role of Vitamin C in wound healing?
49
What is the source of Biotin?
50
What is a major function of Vitamin D?
