Water-Soluble Vitamins
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Organized
MCQ Compilation
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Dr. Mohamed Khomsi
Fb: محمد الخمسي.د
Feb / 2019
, Dr. Mohamed Khomsi
Facebook Page: محمد الخمسي.د
MCQ Collection – Water-Soluble Vitamins
: اسئلة السمسترات الماضية
1. Conversion of pyruvate into acetyl CoA is catalyzed by: )2 )مفاضلة
a) Pyruvate dehydrogenase
b) Dihydrolipoyl acetyl Transferase
c) Dihydrolipoyl dehydrogenase d
d) All the three acting in concert
e) None of the above
2. Riboflavin deficiency causes: )2 )مفاضلة
a) Chelosis
b) Loss of weight
c) Mental deterioration e
d) Dermatitis
e) All of the above
3. Biotin is a coenzyme of the enzyme: )2 )مفاضلة
a) Carboxylase
b) Hydroxylase
c) Decarboxylase a
d) Deaminase
e) All of the above
4. Folic acid consist of the: )2 )مفاضلة
a) Pteridine, P-Aminobenzoic acid & Aspartate
b) Purine, P-Aminobenzoic acid & glutamate
c) Pteridine, P-Aminobenzoic acid & glutamate c
d) Purine, p-Hydroxybenzoic acid & glutamate
e) None of the above
,5. FAD is a coenzyme for: )2 )مفاضلة
a) Succinate dehydrogenase
b) Glycerol 3-phosphate dehydrogenase
c) Sphingosine reductase e
d) Pyruvate dehydrogenase
e) All of the above
6. Vitamin B12 is: )2 )مفاضلة
a) Stored in spleen
b) Stored in Bone Marrow
c) Stored in the pancreases d
d) Stored in liver
e) Stored in RE cell
7. Vitamin B1 coenzyme (TPP) is involved in: )2 )مفاضلة
a) Carboxylation
b) Oxidative decarboxylation b
c) Hydroxylation
d) Transamination
e) Deamination
8. Which is true about vitamin B12: )3 )مفاضلة
a) Is has a role in amino acids transfer
b) Its active form is B12 itself
c) It is present in plant sources d
d) It needs a specific protein for its absorption
e) It’s a coenzyme for oxidoreducatase
9. Bile salts facilitate the absorption of: )3 )مفاضلة
a) Vit B12
b) Vit B1
c) Vit C d
d) Vit B2
e) Biotin
10. Cheilosis & glossitis are symptoms of which of the following deficiencies: )3 )مفاضلة
a) Niacin
b) Riboflavin
c) Pantothenic acid b
d) Ascorbate
e) Folate
, 11. Lipoic acid is a coenzyme for transfer of: )3 )مفاضلة
a) Acyl group
b) Methyl group
c) Imino group a
d) Methenyl group
12. Gastrectomy may lead to deficiency of: )3 )مفاضلة
a) Folic acid
b) Niacin
c) Cobalamin c
d) Riboflavin
e) Tocopherol
13. Conversion of methylmalonyl CoA to succinyl CoA needs: )3 )مفاضلة
a) Folic acid
b) Deoxyadenosyl cobalamin
c) Dehydrofolate b
d) CoA
e) B6
14. The Pantothenic acid transfers: )4 )مفاضلة
a) Acetyl CoA
b) SH group
c) H+ d
d) Acyl group
e) Carboxyl
15. Which one of the following are reduced Coenzymes: )4 )مفاضلة
a) NAD+ and FAD
b) ATP
c) NADH and FADH2 c
d) NADP
e) a&b
16. Acyl carrier protein plays an important role in the biosynthesis of: )4 )مفاضلة
a) Fatty acids
b) Amino acids
c) Vitamin B3 a
d) Homocystein
e) Pantothenic acid
.
.
.
Organized
MCQ Compilation
.
.
.
Dr. Mohamed Khomsi
Fb: محمد الخمسي.د
Feb / 2019
, Dr. Mohamed Khomsi
Facebook Page: محمد الخمسي.د
MCQ Collection – Water-Soluble Vitamins
: اسئلة السمسترات الماضية
1. Conversion of pyruvate into acetyl CoA is catalyzed by: )2 )مفاضلة
a) Pyruvate dehydrogenase
b) Dihydrolipoyl acetyl Transferase
c) Dihydrolipoyl dehydrogenase d
d) All the three acting in concert
e) None of the above
2. Riboflavin deficiency causes: )2 )مفاضلة
a) Chelosis
b) Loss of weight
c) Mental deterioration e
d) Dermatitis
e) All of the above
3. Biotin is a coenzyme of the enzyme: )2 )مفاضلة
a) Carboxylase
b) Hydroxylase
c) Decarboxylase a
d) Deaminase
e) All of the above
4. Folic acid consist of the: )2 )مفاضلة
a) Pteridine, P-Aminobenzoic acid & Aspartate
b) Purine, P-Aminobenzoic acid & glutamate
c) Pteridine, P-Aminobenzoic acid & glutamate c
d) Purine, p-Hydroxybenzoic acid & glutamate
e) None of the above
,5. FAD is a coenzyme for: )2 )مفاضلة
a) Succinate dehydrogenase
b) Glycerol 3-phosphate dehydrogenase
c) Sphingosine reductase e
d) Pyruvate dehydrogenase
e) All of the above
6. Vitamin B12 is: )2 )مفاضلة
a) Stored in spleen
b) Stored in Bone Marrow
c) Stored in the pancreases d
d) Stored in liver
e) Stored in RE cell
7. Vitamin B1 coenzyme (TPP) is involved in: )2 )مفاضلة
a) Carboxylation
b) Oxidative decarboxylation b
c) Hydroxylation
d) Transamination
e) Deamination
8. Which is true about vitamin B12: )3 )مفاضلة
a) Is has a role in amino acids transfer
b) Its active form is B12 itself
c) It is present in plant sources d
d) It needs a specific protein for its absorption
e) It’s a coenzyme for oxidoreducatase
9. Bile salts facilitate the absorption of: )3 )مفاضلة
a) Vit B12
b) Vit B1
c) Vit C d
d) Vit B2
e) Biotin
10. Cheilosis & glossitis are symptoms of which of the following deficiencies: )3 )مفاضلة
a) Niacin
b) Riboflavin
c) Pantothenic acid b
d) Ascorbate
e) Folate
, 11. Lipoic acid is a coenzyme for transfer of: )3 )مفاضلة
a) Acyl group
b) Methyl group
c) Imino group a
d) Methenyl group
12. Gastrectomy may lead to deficiency of: )3 )مفاضلة
a) Folic acid
b) Niacin
c) Cobalamin c
d) Riboflavin
e) Tocopherol
13. Conversion of methylmalonyl CoA to succinyl CoA needs: )3 )مفاضلة
a) Folic acid
b) Deoxyadenosyl cobalamin
c) Dehydrofolate b
d) CoA
e) B6
14. The Pantothenic acid transfers: )4 )مفاضلة
a) Acetyl CoA
b) SH group
c) H+ d
d) Acyl group
e) Carboxyl
15. Which one of the following are reduced Coenzymes: )4 )مفاضلة
a) NAD+ and FAD
b) ATP
c) NADH and FADH2 c
d) NADP
e) a&b
16. Acyl carrier protein plays an important role in the biosynthesis of: )4 )مفاضلة
a) Fatty acids
b) Amino acids
c) Vitamin B3 a
d) Homocystein
e) Pantothenic acid
