„Certified by”

Deputy of the chair___________ N. Melnicova

„19” November, the year 2007.

BLOCK OF TESTS Variant №8

Question 1. What are the solvents for lipids?

1 Water

2 Water buffer solutions

3 Benzene

4 Glucose solution

Question 2. Cholesterol is a derivate of:

1 Cholinesterase

2 Cyclopentan-perhydrofenantren

3 Cyclic nucleotides

4 Cyclic amino-acids

Question 3. Which elements are microelements?

1. C

2. Co

3. Mg

4. N

Question 4. Which method is used for beginnary preparation of biomaterials?

1 Masspectrometry

2 Homogenization

3 Chromatography

4 Electrophoresis

Question 5. Which of these vitamins is necessary for reproduction?

1 Folic

2 Thiamine

3 Riboflavin

4 Tocoferol

Question 6. Which substance is coferment of oxydoreductases?

1 Folic acid

2 Piridoxynic acid

3 Pantotenic acid

4 NAD⁺

Question 7. Aerobic glycolysis promotes the synthesis of:

1 Fructose 1, 6 diphosphate

2 Oxalo-acetate

3 Piruvate

4 Lactate

Question 8. How many ATP-molecules are synthesized during anaerobic splitting of 1 molecule of glucose?

1 – 1;

2 – 4;

3 – 6;

4 – 8.

Question 9. Allosteric inhibitors of phosphofructokinase are:

1 Citrate

2 ATP

3 Ca²⁺

4 All the above mentioned

Question 10. What enzymes regulate the speed of Krebs’ cycle?

1 Lactate-dehydrogenase and malate-dehydrogenase

2 Piruvatkinase and glycogen-phosphorylase

3 Hexokinasa and enolase

4 Citrate-sintase and α-ketoglutarate-dehydrogenase

Question 11. How many ATP molecules are synthesized in respiratory chain during transmission of 1 pair of electrons from NADH on O₂?

1 – 3;

2 – 4;

3 – 6;

4 – 8.

Question 12. Which enzyme catalyses transformation of fructose-6-phosphate into glucose-6-phosphate?

1 Phosphofructocinase

2 Phosphoglucoisomerase

3 Phosphoglucomutase

4 Thriosophosphateisomerase

Question 13. Where reactions of pentose cycle take place?

1 In lysosomes

2 In mitochondrias

3 In ribosomes

4 In cytoplasm

Question 14. Which of aminoacids mentioned below are monoaminomonocarboxylic?

1– Lys,

2 – Arg,

3 – Gly,

4 – Glu.

Question 15. Which substance is a direct precursor for biosynthesis of citric acid?

1. fumaric acid and succinyl CoA

2. malic and succinic acids

3. isocitric and α-ketoglutaric acids

4. acetyl CoA and oxaloacetic acid

Question 16. Which substance is a precursor for biosynthesis of β-hydroxybutyrate?

1. aceto-acetate

2. acetone

3. α-ketoglutaric acid

4. alanine

Question 17. Which of aminoacids mentioned below during oxidative splitting turn into acetyl CoA?

1. Arg and Asp

2. Cys and Leu

3. Glu and Phe

4. Ile and Lys.

Question 18. Which of aminoacids mentioned below during oxidative splitting turn into aceto-acetyl CoA?

1 – Phe,

2 – Thr,

3 – Ser,

4 – Pro.

Question 19. What are the functions of aminoacids in organism?

1. structural components of biomembranes

2. structural components of proteins

3. store of metabolic energy

4. all mentioned above

Question 20. Which enzyme catalyze protein hydrolysis in bowels?

1. aminotransferase

2. phosphotransferase

3. hymotrypsine

4. transaminase

Question 21. Which way of amino-acids desamination is characteristic for mammals?

1. intromolecular

2. oxidative

3. hydrolytic

4. reductive

Question 22. What is the end product of adenine splitting?

1. uric acid

2. β-alanine

3. β-aminoisobutyric acid

4. all mentioned above

Question 23. Which nitrogenous base belongs to pyrimidines?

1. T

2. G

3. A

4. all mentioned above

Question 24. Which enzymes take part in nucleic acids synthesis?

1. DNA-ses

2. phosphatases

3. polymerases

4. nucleosidases

Question 25. What is the function of blood glucose?

1. Creates thrombuses

2. Promotes thrombuses contraction

3. Performs trophic function

4. Stabilizes pH

Question 26. Where blood albumins are synthesized?

1. Marrow

2. Spleen

3. Liver

4. Thymus

Question 27. What is the borders of pH for urine of pig?

1. 7.2-8.7

2. 7.7-8.7

3. 8.0-8.5

4. 6.5-7.8

Question 28. The process of urine synthesis is:

1. Blood plasma filtration into kidney tubules

2. Reabsorption of substances from primary urine

3. Secretion of urine in cells of kidney tubules

4. All the above mentioned

Question 29. Which hormone is produced in gonads?

1. Estrogenes

2. Glucagon

3. Glucocorticoids

4. Thyrocalcitonin

Question 30. Which protein prevails in hair?

1. Ovo-vitelline

2. Myosin

3. Keratin

4. Fibroin