Lesson 25. VITAMINS (COLLOQUIUM)

Questions to study.

1. Vitamins and their significance.

2. Vitamin-like substances.

3. Antivitamins.

4. Disorders of vitamin balance in human body (hypovitaminosis, avita-minosis, hypervitaminosis).

5. Classification of vitamins.

6. Fat-soluble vitamins (А, D, Е, К): their structure, sources, daily requirement, and biological significance. Clinical manifestations of vitamin deficiency.

7. Properties of water-soluble vitamins.

8. Ascorbic acid: its structure, sources, daily requirement, and biological significance. Clinical manifestations of its deficiency.

9. Structure, coenzymes, sources, daily requirement, and biological role of vitamins В₁, В₂, panthotenic acid, niacin, В₆, folic acid, В₁₂, P, and Н. Clinical manifestations of their deficiency.

TESTS TO ASSESS FORMATION OF THE FOLLOWING COMPETENCIES: GC-1, GPC-1, 7, 9, PC-5, 12

Choose one correct answer

7.1. Below is the structure of:

7.2. The source of ascorbic acid is:

A) food of animal origin;

B) food of vegetable origin;

C) gut germs;

D) provitamin C.

7.3. Coenzyme form(s) of vitamin B2 is (are):

A) thiamine pyrophosphate;

B) FMN and FAD;

C) NAD and NADP;

D) pyridoxal phosphate.

7.4. Coenzyme form(s) of vitamin B₁ is (are):

A) thiamine pyrophosphate;

B) FMN and FAD;

C) NAD and NADP;

D) pyridoxal phosphate.

7.5. Coenzyme form(s) of vitamin B₅ (vitamin PP) is (are):

A) thiamine;

B) FMN and FAD;

C) NAD and NADP;

D) pyridoxal phosphate.

7.6. Hypervitaminosis is a condition of vitamin imbalance, when the concentration of the vitamin in the body is:

A) increased;

B) decreased;

C) unchanged.

7.7. Effects of most water-soluble vitamins are due to the fact that they:

A) act as activators of enzymes;

B) are compounds of coenzymes;

C) are inhibitors of enzymes;