The most common in the cells of living organisms are. Living organism test. Nitrogen as an element is part of
One of the properties of living things is the similarity of all living organisms in chemical composition. Of the 109 elements of the periodic system of Mendeleev, a significant majority of them were found in cells. The content of four elements in the cell is especially high - oxygen, carbon, nitrogen and hydrogen. In total, they make up almost 98% of the total contents of the cell. The next group consists of eight elements, the content of which in a cell is calculated in tenths and hundredths of a percent. This sulfur, phosphorus, chlorine, potassium, magnesium, sodium, calcium, iron. In total, they make up 1.9%. All other elements are contained in the cell in extremely small quantities (less than 0.01%). Chemical elements are part of organic and mineral substances. Minerals are found in the cell, as a rule, in the form of cations (K +, Na +, Ca 2+, Mg 2+), anions (HPO 4 2-, H 2 PO 4 -, Cl -, HCO 3) and water. The ratio of which determines the acidity of the medium, which is important for the life of cells. (In many cells, the medium is slightly alkaline and its pH hardly changes, since a certain ratio of cations and anions is constantly maintained in it.). From not organic matter the most common in the cell is water. A lot of water is contained in the cells of the brain and human embryos (more than 80%); in adipose tissue cells - only 40%. Prokaryotic cells contain from 70 to 90% water. By old age, the water content in cells decreases. Water is a good solvent and plays an important role in the chemical reactions that take place in the cell in aqueous solutions. Water promotes movement various substances within a cell or from cell to cell. The high water content in the cell gives it elasticity.
Cells contain carbohydrates, lipids, proteins, nucleic acids, ATP.
Lipids. Lipids are a large group of substances of biological origin, highly soluble in organic solvents such as methanol, acetone, chloroform and benzene. At the same time, these substances are insoluble or slightly soluble in water.
Lipid functions:
Structural. A number of lipids take part in the formation of cell membranes. Typical membrane lipids are phospholipids, glycolipids and cholesterol.
Energy. In quantitative terms, lipids are the main energy reserve of the body. Basically, fat is found in cells in the form of fat droplets, which serve as metabolic "fuel". Lipids are oxidized in mitochondria to water and carbon dioxide with the simultaneous formation of large amounts of ATP (ATP).
Heat regulating. Fat deposits in the subcutaneous tissue and around various organs have high heat-insulating properties. So, whales, walruses, seals, penguins are protected from hypothermia by powerful fat deposits. In a whale, for example, the layer of subcutaneous fat reaches 1 m.
Reserve.
Carbohydrates. Carbohydrates (sugars) - a group of natural polyhydroxy aldehydes and polyhydroxy ketones with the general formula (CH 2 O) n. The group includes simple sugars (monosaccharides), oligosaccharides And polysaccharides.
Functions of carbohydrates:
Structural. So, in the cell walls of bacteria, as a stabilizing structural component, there is murein. In plants, this function is performed cellulose and other polysaccharides. Thus, the cell walls of plants are built from cellulose. Wood contains 40 to 60% cellulose. Carbohydrates are often found bound to lipids. (glycolipids) or proteins (glycoproteins), included in cell membranes.
Reserve. Reserve polysaccharides serve energy resource, from which, as needed, monosaccharides, which are cellular "fuel", enter the body. Due to their polymeric nature, reserve polysaccharides are osmotically inactive and therefore can accumulate in cells in large quantities.
Energy.
Squirrels. Of the macromolecules, they are the most common and account for up to 55% of the dry weight of the cell.
Functions of proteins in the cell:
catalytic. Catalyst proteins speed up chemical reactions in a cage.
Regulatory. For example, the protein insulin regulates blood sugar.
Structural. Protein molecules are part of all cell membranes. Collagen protein molecules form the basis of cartilage and tendons. Protein consists of hair, wool, nails, horns, hooves, scales, feathers, cobwebs. Structural proteins also include histones, whose function is the organization of DNA folding in chromatin.
Motor. Proteins actin and myosin, capable of causing contraction of muscle fibers, as well as proteins that make up the cilia, flagella of unicellular and specialized cells, such as spermatozoa of multicellular organisms.
Protective. The immune system protects the body from pathogens and foreign substances. The key component of this system here is immunoglobulin G, which forms a complex with membrane glycolipids on erythrocytes.
Transport. The best known transport protein is hemoglobin erythrocytes. This protein is involved in the transport of oxygen and carbon dioxide between the lungs and tissues. Blood plasma contains many other proteins that perform transport functions. Ion channels and other integral membrane proteins carry out the transport of ions and metabolites through biological membranes.
Reserve. The plants contain spare proteins are valuable nutrients. in animal organisms muscle proteins serve as reserve nutrients.
Energy. With a lack of polysaccharides and lipids, proteins can perform an energy function.
Nucleic acids. Nucleic acids are built from nucleotide units, which in turn consist of nitrogenous base, carbohydrate residue And phosphate group. There are two types of nucleic acids: deoxyribonucleic acids[DNA (DNA)] and ribonucleic acids. DNA and RNA differ in the type of carbohydrate residue and base structure.
Nucleic acid functions:
gene expression and protein biosynthesis;
storage hereditary information.
1. The most common elements in living organisms are:
A) C, O, S, N; b) H, C, O, N; c) O, P, S, C; d) N, P, S, O.
2. The biological significance of the main macronutrients in the composition of living organisms is mainly due to their:
A) valence; b) the ability to form stronger chemical bonds than other elements; c) prevalence in the earth's crust;
d) valency and the ability to form stronger chemical bonds than other elements.
3. Carbon as an element is part of:
A) proteins and carbohydrates b) carbohydrates and lipids
C) carbohydrates and nucleic acids d) all organic compounds of the cell
4. Nitrogen as an element is part of:
A) proteins; b) proteins and nucleic acids
C) nucleic acids, proteins and ATP d) proteins, nucleic acids and lipids
5. Hydrogen as an element is part of:
A) water, mineral salts and carbohydrates; b) water, carbohydrates, proteins and nucleic acids
6. Oxygen as an element is part of:
A) water, mineral salts and carbohydrates b) water, carbohydrates, proteins and nucleic acids
C) water, carbohydrates, lipids and nucleic acids d) all inorganic and organic compounds of the cell
7. Phosphorus as an element is part of:
A) nucleic acids b) nucleic acids and ATP
C) nucleic acids and ATP, some mineral salts and lipids
D) nucleic acids, ATP, some mineral salts and proteins
8. Sulfur as an element is part of:
A) some proteins b) some mineral salts
C) some proteins and mineral salts d) some proteins and lipids
9. Hydrophilic compounds mainly include:
A) mineral salts b) mineral salts and some carbohydrates
C) some carbohydrates and amino acids d) mineral salts, some carbohydrates and amino acids
10. Hydrophobic compounds mainly include:
A) lipids b) mineral salts and lipids c) lipids and amino acids
d) mineral salts and amino acids
11. Water has the ability to dissolve substances because its molecules:
A) they are polar b) they are small in size c) they contain atoms connected by an ionic bond d) they form hydrogen bonds with each other
12. Potassium and sodium ions enter through the cell membrane through:
13. The concentration of potassium and sodium ions in the cell:
A) the same on its outer and inner surfaces
B) different, there are more sodium ions inside the cell, potassium ions - outside.
C) different, there are more potassium ions inside the cell, sodium ions - outside.
D) in some cases the same, in others different.
14. Regular structure biopolymers include:
A) polysaccharides b) polysaccharides and proteins
C) polysaccharides and nucleic acids d) nucleic acids and proteins
15. Biopolymers of irregular structure include:
A) proteins b) nucleic acids c) nucleic acids and proteins
d) nucleic acids and polysaccharides
16. Monosaccharides include:
A) glucose, ribose, fructose b) galactose, maltose, sucrose
C) fructose, lactose, sucrose d) maltose, ribose, sucrose
17. Disaccharides include:
A) ribulose, galactose, fructose b) ribose, mannose, maltose
C) maltose, lactose, sucrose d) sucrose, fructose, ribulose
18. Polysaccharides include:
A) starch, ribulose, mannose b) glycogen, glucose, cellulose
C) cellulose, starch, glycogen d) starch, cellulose, mannose
19. A sucrose molecule consists of residues:
A) glucose b) glucose and fructose c) fructose and glucose d) glucose and galactose
20. A starch molecule consists of residues:
A) glucose b) fructose c) fructose and glucose d) glucose and galactose
21. A glycogen molecule consists of residues:
A) glucose b) galactose c) glucose and galactose d) galactose and fructose
22. Triglycerides (esters of glycerol and higher fatty acids) are:
A) fats b) oils c) oils and fats d) fats, oils and phospholipids
23. Phospholipid molecule has:
A) hydrophilic head and hydrophobic tail b) hydrophobic head and hydrophilic tail c) hydrophilic head and tail d) hydrophobic head and tail
24. In aqueous solutions, amino acids exhibit the following properties:
a) acids b) bases
c) acids and bases d) in some cases acids, in others - bases
25. The primary structure of a protein is determined by amino acid residues:
a) number b) sequence c) number and sequence d) types
26. The primary structure of a protein is supported by bonds:
a) peptide b) hydrogen; c) disulfide;
d) hydrophobic.
27. The secondary structure of a protein is determined by:
a) spiralization of the polypeptide chain;
b) the spatial configuration of the polypeptide chain;
c) the number and sequence of amino acids of the spiralized chain;
d) the spatial configuration of the spiralized chain.
28. The secondary structure of a protein is mainly supported by bonds:
a) peptide b) hydrogen c) disulfide d) hydrophobic
29. The tertiary structure of a protein is determined by:
a) spiralization of the polypeptide chain
b) the spatial configuration of the spiralized polypeptide chain
c) the connection of several polypeptide chains
d) spiralization of several polypeptide chains
30. The tertiary structure of a protein is mainly supported by bonds:
a) ionic b) hydrogen c) disulfide d) hydrophobic
31. The quaternary structure of a protein is determined by:
a) spiralization of the polypeptide chain
b) the spatial configuration of the polypeptide chain
c) spiralization of several polypeptide chains
d) the connection of several polypeptide chains.
32. In maintaining the quaternary structure of the protein, the following are not accepted:
a) peptide b) hydrogen c) ionic d) hydrophobic.
33. The physicochemical and biological properties of a protein are completely determined by the structure:
a) primary b) secondary c) tertiary d) quaternary.
34. Fibrillar proteins include:
c) myosin, insulin, trypsin d) albumin, myosin, fibroin.
35. Globular proteins include:
a) fibrinogen, insulin, trypsin b) trypsin, actin, elastin
c) elastin, thrombin, albumin d) albumin, globulin, glucagon.
36. A protein molecule acquires natural (native) properties as a result of structure self-assembly
a) primary b) mostly primary, rarely secondary
c) Quaternary d) mostly tertiary, rarely Quaternary.
37. Monomers of nucleic acid molecules are:
a) nucleosides b) nucleotides c) polynucleotides d) nitrogenous bases.
38. DNA molecule contains nitrogenous bases:
a) adenine, guanine, uracil, cytosine b) cytosine, guanine, adenine, thymine
c) thymine, uracil, thymine, cytosine d) adenine, uracil, thymine, cytosine
39. An RNA molecule contains nitrogenous bases:
a) adenine, guanine, uracil, cytosine b) cytosine, guanine, adenine, thymine c) thymine, uracil, adenine, guanine d) adenine, uracil, thymine, cytosine.
40. The composition of the monomers of DNA and RNA molecules differs from each other in the content of:
a) sugar b) nitrogenous bases c) sugar and nitrogenous bases d) sugar, nitrogenous bases and phosphoric acid residues.
41. Purine nitrogenous bases that make up DNA include:
a) adenine and thymine b) uracil and cytosine c) adenine and guanine d) cytosine and thymine
42 The pyrimidine nitrogenous bases that make up DNA include:
a) adenine and thymine b) uracil and cytosine c) adenine and guanine d) cytosine and thymine.
43. Purine nitrogenous bases that are part of RNA include: a) adenine and uracil b) adenine and guanine c) cytosine and thymine d) cytosine and uracil
44 To pyrimidine. The nitrogenous bases that make up RNA are:
a) adenine and uracil b) adenine and guanine c) cytosine and thymine d) cytosine and uracil
45. In the composition of DNA, the ratio of nucleotides is constant
a) A+G/T+C b) A+T/G+C c) A+C/T+G d) A/G, T/C.
46. In the composition of RNA, the ratio of nucleotides is constant:
a) A+G/T+C b) A+G/U+C c) A+U/G+C d) A/G, U/C.
47. During the synthesis of DNA and RNA molecules, a polynucleotide chain is formed due to links between: a) sugar residues of nucleotides b) residues of phosphoric acids and sugars of nucleotides
c) nitrogenous bases and sugar residues of nucleotides d) nitrogenous bases and phosphoric acid residues of nucleotides.
48. The secondary structure of DNA is supported by links between:
a) neighboring nucleotides of one of the chains
b) phosphoric acid residues of nucleotides in two chains
d) non-complementary nitrogenous bases of nucleotides in two chains.
49. The connection of two polynucleotide chains into a DNA helix is carried out by bonds:
a) ionic b) hydrogen c) hydrophobic d) electrostatic.
50. The number of bonds that arise in the complementary base pair of adenine-thymine of the DNA molecule is: a) 1 b) 2 c) 3 d) 4.
51. The number of bonds that occur in a complementary base pair of guanine-cytosine of a DNA molecule is: a) 1 b) 2 c) 3 d) 4.
52. The number of variants of complementary base pairs of DNA nucleotides is:
a) 2 b) 3 c) 4 d) 5.
53. The distance between the sugar-phosphate backbones of two DNA strands is equal to the distance occupied by:
a) a pair of purine bases b) a pair of pyrimidine bases
c) one purine and one pyrimidine base; d) two purine and two pyrimidine bases.
54. A full turn of the DNA double helix falls on:
a) 5 base pairs b) 10 base pairs c) 15 base pairs d) 20 base pairs
55. The model of the structure of the DNA molecule was proposed by J. Watson and F. Crick in:
a) 1930 b) 1950 c) 1953 d) 1962
56. A cell contains DNA in:
a) nucleus b) nucleus and cytoplasm c) nucleus, cytoplasm and mitochondria d) nucleus, mitochondria and chloroplasts.
57. The largest molecular sizes are:
a) tRNA b) snRNA c) mRNA d) rRNA.
58. Protein biosynthesis in a cell mainly involves:
a) DNA. mRNA b) mRNA, tRNA c) tRNA, rRNA d) mRNA, rRNA
59. ATP molecule contains:
a) adenine, deoxyribose and three phosphoric acid residues b) adenine, ribose and three phosphoric acid residues c) adenosine, ribose and three phosphoric acid residues d) adenosine, deoxyribose and three phosphoric acid residues.
60. In an ATP molecule, phosphoric acid residues are interconnected by bonds:
a) two hydrogen b) two electrostatic c) two macroergic ..
d) three macroergic.
Subject: Chemical composition cells.
Complete the sentences by filling in the necessary terms and concepts instead of dots.
1. A water molecule that carries a positive charge at one end and a negative charge at the other is called ....
2. Substances that are highly soluble in water are called ....
3. Substances that are poorly soluble and completely insoluble in water are called ....
4. The difference between the concentrations of K + and Na + ions inside and outside the cell creates on its membrane ....
5. Carbohydrates ribose, glucose. Sucrose by chemical structure refer to….
6. Carbohydrates maltose, lactose, sucrose by chemical structure belong to ...
7. Carbohydrate starch. glycogen, cellulose in chemical structure belong to ....
8. Molecules of any polymer consist of many repeating units -…
9. The sucrose molecule consists of glucose residues and - ...
10. The monomer of starch, glycogen and cellulose molecules is ...
11. The main biological function of monosaccharides in the cell is ...
12. The product of the esterification reaction between glycerol and higher fatty acids - ...
13. Higher fatty acids (oleic, linolenic), containing double bonds are called...
14. Higher fatty acids (palmitic, stearic), in the molecule of which there are no double bonds, are called ...
15. Triglycerides containing residues of glycerol and solid fatty acids are called ...
16. Triglycerides containing residues of glycerol and liquid fatty acids are called ...
17. The main biological function of phospholipids in the cell is ...
18. The monomers of protein molecules are...
19. Part of an amino acid molecule that determines its unique properties ...
20. Amino acids that are not synthesized in the animal body and are obtained only in finished form with food are called ...
21. A compound formed as a result of a condensation reaction of two amino acids ...
22. The number and sequence of amino acid residues in the polypeptide chain - ...
23. Neighboring amino acid residues in the polypeptide chain are connected to each other using ...
24. Amino acid residues in adjacent turns of the helix of the polypeptide chain are connected together using ...
25. The first protein for which it was possible to find out its amino acid sequence was ...
26. A special geometric shape characteristic of each protein is called ...
27. The process of loss of its natural structure by a protein molecule under the influence of various factors is called ...
28. The process of spontaneous restoration of the natural structure of a denatured protein is called ...
29. The monomers of DNA and RNA molecules are ...
30. The five-carbon sugar that is part of the DNA molecule is ...
31. Nitrogenous bases: adenine and guanine, which are part of nucleic acid molecules, belong to the class ...
32. Nitrogenous bases: cytosine, thymine, uracil, which are part of nucleic acid molecules, belong to the class ...
33. Compound of a five-carbon sugar with a nitrogenous base - ...
34. A compound formed as a result of a condensation reaction of two nucleotides - ...
35. Two antiparallel DNA chains are connected to each other through nitrogenous bases according to the principle ...
36. The secondary structure of DNA is maintained mainly with the help of ...
37. In the cell nucleus, DNA is part of ...
38. The process of self-reproduction of DNA molecules, providing accurate copying of genetic information ...
39. One of the DNA chains has the nucleotide sequence AATTGCCGGA. The second chain complementary to it will have a nucleotide sequence ...
40. Adenyl nucleotide connected to two phosphoric acid residues - ...
Option I
A). Select one
1. The most common elements in living organisms are:
A) C, O, S, NIN) H, C, O, NWITH) O, P, S, CD) N, P, S, OE) N, P, S, C
2 . Organic matter, which is the source of energy and metabolic water in the cell, is
A) protein B) starch C) fat D) nucleic acid E) carbohydrate
3. Catalytic function in the body is performed
A) vitamins B) nucleic acids C) proteins D) carbohydrates E) fats
4 . The science of the cell is called
5. In accordance with the principle of complementarity, a section of a DNA molecule looks like this:
A) A-G-C-T-G-A-A-T B) A-G-G-C-T-G-A-A-T
T-C-G-A-C-T-T-A G-A-A-T-C-A-G-C-G
C-T-T-A-G-T-C-C-G U-C-C-G-A-C-U-U-A T-A-C-G-A-T-T-T- A
6. The term "carbohydrate" was first introduced
A) R. Hooke B) A. Leeuwenhoek C) Ch. Darwin E) K. Schmidt E) K Baer
7. Major plant polysaccharide
A) glycogen B) starch C) cellulose D) chitin E) murein
8. When splitting 1 g, 38.9 kJ of energy is released
A) protein B) starch C) fat D) nucleic acid E) carbohydrate
9. Protein monomers are
10. The structural and functional unit of all living organisms is
A) tissue B) cell C) organism D) organ E) organ system
11. The DNA molecule performs the function
A) synthesis of proteins, fats, carbohydrates
B) ATP synthesis
C) spare
D) transport
E) carrier of hereditary information
12. The chemical element that makes up chlorophyll
13. Identify polysaccharides
C) glucose, ribose E) sucrose, ribose
C) fructose, sucrose
14. J. Watson and F. Crick deciphered the molecule
A) rRNA B) ATP C) DNA E) mRNA E) tRNA
15. The outer layer of the cell
A) shell B) vacuole C) chloroplast D) nucleus E) citoplasm
IN). Choose three correct answer out of six options:
16. The similarity of animal cells and bacteria is that they have
A) well-formed nucleus B) cytoplasm C) mitochondria
D) glycocalyx E) plasma membraneF) ribosomes
17. The disaccharides are
A) maltose B) galactose C) sucrose D) lactose E) glucoseF) glycogen
18. What is an ATP molecule?
A) three residues of phosphoric acid B) deoxyribose C) adenine D) ribose E) cytosineF) amino acid
19 . Establish a correspondence between the features of the structure and function and the organoid for which they are characteristic.
STRUCTURE AND FUNCTIONORGANOIDS
1) 2 chains
A) DNA
2) 1 chain
B) RNA
3) A, T, G, C
4) deoxyribose
5) ribose
6) A, U, G, C
20. Complete the sentences:
1. Structural and functional unit of all living organisms ....
2. Non-nuclear organisms are called ....
3. At the top of the tubelocated … .
4. Substances are divided into hydrophilic and hydrophobic in relation to ....
5. RNA and DNA refer to ... ....
Test in biology for the 1st quarter of the 10th grade
Option II .
A). Select one answer which is the most correct
1. Select a group chemical elements, the content of which in the cell is
the sum of 98%, -
A)H, O, N, PB) HO, S, PWITH)H, C, O, ND)C, H, K, FeE) H, C, K, R
2. A microscope that magnifies 300 times has 20 on the objective, and 20 on the eyepiece.
A) 280 B) 600 C) 30 E) 15 E) 150
3. The prokaryotes are
A) bacteria B) protozoa C) plants D) viruses E) animals
4. The glycogen molecule consists of residues :
A) sucrose B) fructose C) galactose D) ribose E) glucose
5. In accordance with the principles of complementarity, a section of a DNA molecule looks like this:
A) A-G-G-C-T-G-A-A-T C) A-G-G-C-T-G-A-A-T
T-C-C-G-U-C-T-T-U G-A-A-T-C-A-G-C-G
C) A-G-G-C-T-G-A-A-T E) A-G-G-C-T-G-A-A-T E) A-G-G-C-T- G-A-A-T
C-T-T-A-G-T-C-C-G U-C-C-G-A-C-U-U-A T-C-C-G-A-C-T-T- A
6. Contained in large quantities in fruit juice, honey, sugar beet
A) glucose B) fructose C) starch D) lactose E) galactose
7. Organic matter, which provides all the processes of cell life, is
A) carbohydrates B) proteins C) fats D) nucleic acids E) amino acids
8. Monomers of fats are
A) amino acids B) glucose C) glycerol and fatty acids D) nucleotides E) lipase
9. The science of the cell is called
A) cytology B) anatomy C) embryology D) histology E) hygiene
10. Identify Monosaccharides
A) starch, cellulose D) lactose, chitin
C) glucose, ribose E) fiber, ribose
C) fructose, glycogen
11. The structure of RNA does not contain
A) cytosine B) uracil C) guanine D) adenine E) thymine
12. Chemical element that is part of hemoglobin
A) potassium B) iron C) manganese D) nickel E) magnesium
13. Inorganic substances of the cell
A) proteins, fats C) fatty acids, glycerol
C) carbohydrates, water D) glucose, calcium phosphate E) water, salts
14. DNA is a macromolecule, the monomers of which are
A) deoxyribonucleotide C) nucleotide
C) ribonucleotide D) amino acid E) glucose
15. Prokaryotes include
A) plants B) cyanobacteria C) viruses D) fungi E) animals
IN). Select three correct answer out of six given
16. There are three types of RNA
A) cRNA B) mRNA C) rRNA E) lRNA E) tRNAF) sRNA
17. Monosarids include
A) glucose B) sucrose C) fructose D) galactose E) chitinF) glycogen
18. DNA molecule
A) a polymer whose monomer is a nucleotide D) a polymer whose monomer is an amino acid
C) double-chain polymer E) single-chain polymer C) regular polymerF) is part of the chromosomes
19. Establish a correspondence between the characteristics of organic substances and their types
STRUCTURE AND FUNCTIONORGANOIDS
1) made up of amino acids
A) carbohydrates
2) made up of glucose
B) Proteins
3) perform an enzymatic function
4) when splitting 1 g, 17.6 kJ is released
5) storage substances of the body
6) perform a transport function
20. Complete the sentences.
1. The science of living organisms is .... .
2. Introduced the term cell ...
3. Nuclear organisms are called ....
4. Adenine is complementary ....
5. The transport function in the body of animals is performed by ...
Answers:
question1 option
Option 2
1
IN
WITH
2
WITH
D
3
WITH
A
4
A
E
5
A
E
6
D
IN
7
IN
A
8
WITH
WITH
9
A
A
10
IN
IN
11
E
E
12
E
IN
13
A
E
14
WITH
A
15
A
IN
16
B, E, F
ALL
17
A, C, D
A, C, D
18
A, C, D
A, B F
19
A - 1, 3.4
B - 2, 5, 6
A – 1 , 4, 5
B - 2, 3, 6
20
1 - cell
2 - prokaryotes
3 - eyepiece
4 - water
5 - nucleic acids
1 - biology
2 - R. Hook
3 - eukaryotes
4 - thymine
5 - hemoglobin
Administrative Verification work
Class_________________________
Item_______________________
Subject________________________________________
Option_____
Full name of student _______________________________________
question1 option
Option 2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
A-
B-
A-
B-
20
1 –
2 –
3 –
4 –
5 –
1 -
2 –
3 –
4 –
5 -
Checked:
Teacher: Full name __________________________ Signature _____________ Points __________ Mark _________
Deputy Director for WRM ________________ Ashurbekov I.A.
