Essential Biochemistry - Vitamins (Section 4)
1
What is the main food source of Riboflavin?
2
What disease is caused by lack of thiamine?
3
What does Vitamin B12, in the form of methylcobalamin, act as a coenzyme for?
4
What is the primary role of Riboflavin in the body?
5
Which vitamin is essential for the synthesis of NAD and NADP?
6
Which of the following are functions of PLP (Pyridoxal phosphate)?
7
Which vitamin can be synthesized from tryptophan?
8
What is the main function of Pantothenic acid (Vitamin B5)?
9
What are the four Ds of pellagra?
10
Pellagra occurs due to deficiency of:
11
Which of the following is not a function of Vitamin B1?
คำตอบ(B)
Synthesis of nucleic acids
12
Which vitamin is often associated with 'Wernicke-Korsakoff syndrome' in alcoholics?
13
Which of the following is NOT a water-soluble vitamin?
14
What is the active form of Vitamin B6 that functions as a coenzyme?
คำตอบ(B)
Pyridoxal 5'-phosphate (PLP)
15
Which process is affected due to the deficiency of Vitamin B12?
17
What is the main source of Pantothenic acid?
คำตอบ(A)
Meat, Grains and egg yolk
18
What is the role of pyridoxal phosphate in amino acid metabolism?
คำตอบ(B)
Amino acid transamination
19
Antihemorrhagic vitamin is:
20
What vitamin is involved in the carboxylation of pyruvate to oxaloacetate?
21
What is the role of FAD (flavin adenine dinucleotide) in biochemical reactions?
คำตอบ(A)
Participates in oxidation-reduction reactions
22
Which of the following is the precursor for the synthesis of the NAD+ and NADP+ coenzymes?
23
Which of the following vitamins would most likely become deficient in a person who developed a completely vegetarian lifestyle?
24
Which vitamin is involved in the metabolism of amino acids?
25
What is the recommended dietary allowance (RDA) for adults for Vitamin B12?
26
Beriberi is a deficiency disease caused by a lack of which vitamin?
27
What are some of the key signs of pellagra?
28
What are the functions of Vitamin A in the body?
29
Which vitamin is a component of coenzyme A (CoA)?
30
The main dietary sources of Vitamin C are?
31
Which of the following is a key function of ascorbic acid (Vitamin C)?
32
Which of the following is a clinical manifestation of vitamin B1 deficiency (Beriberi)?
33
The symptoms of Hypervitaminosis D include:
34
Which vitamin is crucial for the normal function of the nervous system?
35
Which of the following reactions is/are catalyzed by PLP (Pyridoxal phosphate)?
36
All of the following vitamins have antioxidant property, except:
37
What is the role of thiamine pyrophosphate (TPP) in carbohydrate metabolism?
คำตอบ(B)
Acts as a cofactor in pyruvate dehydrogenase complex
38
Which vitamin deficiency is associated with pellagra?
39
Which condition is associated with excessive alcohol consumption and thiamine deficiency?
คำตอบ(C)
Wernicke-Korsakoff syndrome
40
What is the function of CoA?
41
The active forms of Niacin are:
คำตอบ(A)
Nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP)
42
Which is the active form of vitamin B7?
43
Which of the following reactions requires pyridoxal phosphate (PLP) as a coenzyme?
คำตอบ(B)
The deamination of amino acids
44
Which of the following is a function of pyridoxal phosphate?
45
What is the major function of Vitamin K?
46
The formation of carnitine requires:
47
Which of the following foods is a good source of riboflavin?
48
What is the relationship between the deficiency of Vitamin B1 and chronic alcohol consumption?
คำตอบ(C)
Alcohol impairs B1 absorption and increases its excretion
49
What is the role of NAD+ and NADP+ in the body?
คำตอบ(B)
Act as coenzymes in oxidation-reduction reactions
50
Which disease is associated with Niacin deficiency?
