Practical lesson 5

WATER-SOLUBLE AND LIPID- SOLUBLE VITAMINS. VITAMINS AS COFACTORS

Choose the one correct answer:

1. Which one of the following statements about vitamins is incorrect?

A. vitamins are all organic compounds;

B. vitamins cannot be synthesized in the human body;

C. vitamins must be provided in the diet;

D. they are essential for the normal processes of metabolism;

E. the human body is able to produce lipid- soluble vitamins.

2. The lipid- soluble vitamins includes:

A. vitamins A, D, E, C;

B. vitamins A,B,C,D;

C. vitamins A,B,C,E;

D. vitamins B,C,D, K;

E. vitamins A,D,E,K

3. The water- soluble vitamins includes:

A. vitamins A,D, biotin;

B. vitamins B, C, E;

C. vitamins B, C, biotin;

D. vitamins A, D, K;

E. vitamins B,C, K.

4. Which one of the following statements about water-soluble vitamins is incorrect?

A. are soluble in fat;

B. are soluble in water;

C. no storage in the organism;

D. are excreted from the organism;

E. deficiency manifests rapidly.

5. Which one of the following statements about lipid-soluble vitamins is incorrect?

A. are soluble in fat;

B. are soluble in water;

C. stored in liver;

D. are not excreted from the organism;

E. deficiency manifests only when stores are depleted.

6. Which one of the following statements about vitamins is incorrect? In general, deficiency of vitamins may occur due to:

A. reduced intake;

B. impaired absorption and metabolism;

C. additional requirements;

D. increases losses;

E. increases intake.

7. Choose the one incorrect answer. FAD- dependent Enzymes are following:

A. succinate dehydrogenase;

B. Acyl CoA dehydrogenase;

C. xanthine oxidase;

D. pyruvate dehydrogenase, α-ketoglutarate dehydrogenase;

E. lactate dehydrogenase.

8. Choose the one incorrect answer. NAD⁺- dependent Enzymes are following:

A. lactate dehydrogenase;

B. glyceraldehyde-3-phosphate dehydrogenase;

C. pyruvate dehydrogenase, α- ketoglutarate dehydrogenase;

D. β- hydroxy acyl CoA dehydrogenase and glutamate dehydrogenase;

E. succinate dehydrogenase.

9. Choose the one incorrect answer. NADPH-generating reactions are following:

A. glucose-6-phosphate dehydrogenase:

B. 6-phosphogluconate dehydrogenase;

C. cytoplasmic isocitrate dehydrogenase;

D. malic enzyme;

E. lactate dehydrogenase.

10. Choose the one incorrect answer. NADPH- utilizing reactions are following:

A. lactate dehydrogenase;

B. HMG CoA reductase;

C. met-hemoglobin reductase;

D. phenyl alanine hydroxylase.

E. Folate reductase.

PRACTICAL LESSON 6