„Certified by”

Deputy of the chair___________ N. Melnicova

„19” November, the year 2007.

BLOCK OF TESTS Variant №5

Question 1. What does it mean adsorption?

1 Sorption of substance by surface of sorbent

2 Sorption of steams by solids

3 Chemical reaction between adsorptive and adsorbent

4 Sorption of liquids

Question 2. Which solutions are high-molecular?

1 Glucose

2 Maltose and lactose

3 Egg-white albumin and gelatin

4 All the above-mentioned variants

Question 3. Which vitamin is fat - soluble?

1 Holine

2 Tocoferol

3 Riboflavin

4 Thiamine

Question 4. Which elements are macroelements?

1. Fe

2. I

3. N

4. Zn

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

1 Retinol

2 Riboflavin

3 Filohion

4 Calciferol

Question 6. Which substance is coferment of oxydoreductases?

1 Pantotenic acid

2 Piridoxynic acid

3 FAD

4 Folic acid

Question 7. What is the function of phosphate groups of phosphorilated metabolites of glycolysis?

1 They prevent these metabolites from coming out of the cell

2 Take part in metabolic energy accumulation

3 They perform the function of identification and bounding

4 All the above mentioned

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

1 – 1;

2 – 2;

3 – 4;

4 – 6.

Question 9. The regulatory enzyme of glycolysis is:

1 Phosphofructokinase

2 Hexokinase

3 Piruvatekinase

4 All the above mentioned

Question 10. Which enzyme promote including glycerol into glycolysis:

1 Glycerol-kinase

2 Phosphoglycerate-mutase

3 Glyceraldehyde-phospate-dehydrogenase

4 All the above mentioned

Question 11. Krebs’ cycle is the process of:

1 Anaerobic splitting of carbohydrates

2 Substrate phosphorylation

3 Oxidative phosphorylation

4 Splitting of acetyl-group residues

Question 12. Where oxidative phosphorylation is performed:

1 In cytosoles

2 In respiratory chain

3 In matrix of mitochondrions

4 On internal surface of sarcolemma

Question 13. Where reactions of pentose cycle take place?

1 In lysosomes

2 In mitochondrions

3 In cytoplasm

4 In ribosomes

Question 14. Which of aminoacids mentioned below are hetero-cyclic?

1 – Ser,

2 – Trp,

3 – Thr,

4 – Tyr.

Question 15. Which of aminoacids mentioned below are dicarboxylic?

1 – Asp,

2 – Ala,

3 – Gln,

4 – Val.

Question 16. Which substance is a precursor for biosynthesis of tyrosine?

1. fumaric acid

2. phenylalanine

3. α-ketoglutaric acid

4. treonine

Question 17. Which substance is a precursor for biosynthesis of aceto-acetate?

1 β-hydroxybutyrate

2 β-hydroxymetylglutarylCoA

3 aceto-acetyl CoA

4 all mentioned above

Question 18. Which of aminoacids mentioned below during oxidative splitting turn into α-ketoglutaric acid?

1 – Ser,

2 – Gln,

3 – Gly,

4 – Asp.

Question 19. Which of aminoacids mentioned below during oxidative splitting turn into aceto-acetyl CoA?

1. Ala

2. Arg

3. Lys

4. Met

Question 20. Which enzyme catalyze protein hydrolysis in stomach?

1. carboxypeptidase

2. pepsine

3. trypsine

4. hymotrypsine

Question 21. Which enzyme cuts C-ending amino-acids in proteins?

1. carboxypeptidase

2. dipeptidase

3. aminopeptidase

4. hymotrypsine

Question 22. What substance is a product of ornithin Krebs cycle?

1. arhynine

2. glutaminic acid

3. urea

4. uric acid

Question 23. What is the main end product of Nitrogen metabolism in Human?

1. urea

2. uric acid

3. alantoine

4. glyoxylic acid

Question 24. Which nitrogenous base belongs to purines?

1. C

2. G

3. U

4. T

Question 25. What is the function of blood thrombin?

1. Fibrinogen transformation into fibrin

2. Decomposes fibrinogen and fibrin

3. Performs trophic function

4. Stabilizes pH

Question 26. Which buffer system prevails in urine?

1. Citrated

2. Bicarbonated

3. Phosphated

4. albuminous

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

1. 7.2-8.7

2. 7.7-8.7

3. 8.0-8.5

4. 6.5-7.8

Question 28. Which components of urine belong to physiological?

1. Organic acids

2. Protein

3. Hemoglobin

4. Ketone bodies

Question 29. Which hormone is produced in adrenal glands?

1. Adrenalin

2. Oxitocin

3. Somatotropin

4. Thyrotropin-releasing hormone

Question 30. Which protein prevails in silk?

1. Ovo-vitelline

2. Myosin

3. Keratin

4. Fibroin

NATIONAL AGRICULTURAL UNIVERSITY

Chair of animal biochemistry, quality and safety of agricultural products

Faculty of veterinary medicine

Speciality 7.130501 “Veterinary medicine”

Full-time tuition

Semester 3 Year 2

Subject: “Biochemistry with fundamentals of physical and colloid chemistry”

Teachers I. Kalinin, V. Zhulai.