„Certified by”

Deputy of the chair___________ N. Melnicova

„19” November, the year 2007.

BLOCK OF TESTS Variant №2

% Question 1. What does it mean рН?

1 Ionic control

2 Data of Hydrogen ions concentration

3 Data of Hydroxyl ions concentration

4 Normality

% Question 2. What does it mean enthalpy?

1 Colloid defense

2 The sum of inner energy and work of extension of system till some volume

3 Defense of colloids from solids

4 All the above mentioned

% Question 3. Which enzyme is activated by Zn ions

1 Carboanhydrase

2 Lipase

3 Lease

4 Amylase

% Question 4. Vitamin D derives from:

1 Sterols

2 Cyclopentan-perhydrofenantren

3 Cyclic nucleotides

4 Cyclic amino-acids

% Question 5. Which vitamin is fat-soluble?

1 Retinol

2 Riboflavin

3 Thiamine

4 Holine

% Question 6. Which substance is coferment of oxydoreductases?

1 Pantotenic acid

2 FAD

3 Piridoxynic acid

4 Folic acid

% Question 7. How many basic reactions take part in glycolysis?

1 – 8;

2 – 10;

3 – 12;

4 – 15.

% Question 8. Allosteric activators of phosphofructokinase are:

1 AMP and ADP

2 Fructose 1, 6 diphosphate

3 Phosphate and K⁺

4 All the above mentioned

% Question 9. Krebs cycle is the process of:

1 Aerobic splitting of substrates

2 Amphibolic way of metabolism

3 Splitting of acetyl-group residues

4 All the above mentioned

% Question 10. Oxidative phosphorylation is:

1 ATP synthesis associated with transport of electrons on O₂

2 Aerobic splitting of organic substances with end products H₂O and CO₂

3 Cellular respiration

4 Anaerobic splitting of organic substances accompanied by ATP synthesis

% Question 11. Oxidative phosphorylation is:

1 Anaerobic splitting of organic substances accompanied by ATP synthesis

2 Aerobic splitting of organic substances with end products H₂O and CO₂

3 Cellular respiration

4 ATP synthesis associated with transport of electrons on O₂

% Question 12. How many ATP molecules are synthesized in respiratory chain during transmission of 1 pair of electrons from FADH₂ on O₂?

1 – 1;

2 – 2;

3 – 4;

4 – 5.

% Question 13. The end products of first stage of β-oxidation of fatty acids are:

1 Acetyl-CoA, NADH, FADH₂

2 Succinyl-CoA, NADPH

3 Palmytoyl-CoA, ATP

4 Palmytoyl-karnitin

% Question 14. Which of aminoacids mentioned below are essential?

1 – Lys,

2 – Glu,

3 – Cys,

4 – Tyr.

% Question 15. Which of aminoacids mentioned below are ketogenic?

1 – Ala,

2 – Arg,

3 – Tyr,

4 – Thr.

% Question 16. Which substance is a precursor for biosynthesis of asparaginic acid?

1. arginine

2. piruvate

3. oxaloacetic acid

4. metionine

% Question 17. Which substance is a precursor for biosynthesis of glutamin?

1 glycine

2 glutaminic acid

3 lysine

4 proline

% Question 18. Which substance is a direct precursor for biosynthesis of succinic acid?

1. malic acid

2. succinylCoA

3. isocitric acid

4. α-ketoglutaric acid

% Question 19. Which of aminoacids mentioned below during oxidative splitting turn into piruvate?

1 Ala,

2 Arg,

3 Asn,

4 Gln.

% Question 20. Which of aminoacids mentioned below during oxidative splitting turn into oxaloacetic acid?

1 Asp,

2 Phe,

3 Glu,

4 Gly.

% Question 21. Which group of enzymes catalyzes reversible transformation of aminoacids into keto-acids?

1. aminoacyltransferases

2. phosphotransferases

3. aminotransferases

4. decarboxylases

% Question 22. Which substances are the sources of anabolic Nitrogen for animals?

1. urea

2. lipids

3. proteins

4. all mentioned above

% Question 23. What substance is a product of ornithin Krebs cycle?

1. alanine

2. citrulline

3. ornithin

4. urea

% Question 24. What are the products of DNA hydrolysis?

1. nucleotides, phosphoric acid, ribose

2. nucleosides, deoxiribose, pyrophosphate

3. nitrogenous bases, phosphoric acid, hexoses

4. all mentioned above

% Question 25. What is the function of blood hemoglobin?

1. Transport of different substances

2. Transport of O2 and CO2

3. Bonding of antigens

4. Plasmozyme transformation into thrombin

% Question 26. Which protheinous fractions of blood plasma contain plasmozyme?

1. albumin

2. α-globulin

3. β-globulin

4. γ-globulin

% Question 27. What are physiological borders of pH in blood of cow?

1. 7.20-7.60

2. 7.36-7.50

3. 7.85-7.95

4. 6.00-6.80

% Question 28. Which components of urine belong to physiological?

1. Bilirubin

2. Hemoglobin

3. Hormones

4. Ketone bodies

% Question 29. Which hormone is produced in thymus?

1. Oxitocin

2. Parathyroid hormone

3. Thyrocalcitonin

4. Thymosine

% Question 30. Which protein prevails in muscle tissue?

1. Collagen

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.