Molecular level test general characteristics. Biology test on "Molecular level" (grade 9)
Option 1.
1 . The chemical elements carbon, oxygen, hydrogen and nitrogen are called ...
2. Differences between animate and inanimate nature arise at ... level.
3. The composition of thyroid hormones includes a trace element ....
4. Hemoglobin molecule contains ions….
5. Substances soluble in water are called….
6. With complete oxidation of 1 g of lipids, ... energy is released.
7. The amino acids that make up proteins differ from each other….
8. The process of destruction of the primary structure of a protein is called….
9. Monomers nucleic acids are….
10. Proteins that affect the rate of biochemical processes in the cell are called….
11. Structural polysaccharide of plants….
12. Reserve polysaccharide of animals and fungi….
13. The secondary structure of a protein is….
14. The proteins actin and myosin perform ... a function.
15. Polysaccharides in terms of the characteristics of monomers belong to the group of ... biopolymers.
16. The process of synthesizing a new DNA strand on a matrix is called….
17. Instead of thymine, a nitrogenous base is included in the RNA nucleotides ....
18. A fragment of a DNA molecule encoding one polypeptide is called ....
19. A molecule… has a secondary structure in the form of a clover leaf.
20. The quantitative regularities of the content of nitrogenous bases in the DNA molecule have been established….
Open biology tests (tasks - additions) on the topic:
« Molecular level organization of life "Grade 10.
Instructions for performing tests:
- Read the sentences carefully.
-Find the necessary words to the places where they are missing.
- Under the corresponding numbers in the notebook, write down only what is missing.
Option 2.
1. At the elemental level, the differences between animate and inanimate nature….
2. The composition of chlorophyll molecules includes metal ions ....
3. The supporting structures of horsetails and diatoms contain compounds….
4. Due to the mobility of molecules, water can perform ... a function.
5. In relation to water, lipids and lipoids belong to the group of ... compounds.
6. With complete oxidation of 1 g of carbohydrates ... energy is released.
7. Sex hormones and adrenal hormones are synthesized in the body from ...
8. High-molecular organic compounds, the molecules of which consist of a large number of residues of simple molecules, are called….
9. Protein monomers are….
10. The process of restoring the natural structure of a protein after reversible denaturation is called….
11. Structural polysaccharide of animals and fungi….
12. The main reserve polysaccharide of plants….
13. The primary structure of the protein is held by ... bonds.
14. Proteins collagen and elastin perform ... a function.
15. Proteins and nucleic acids, according to the characteristics of monomers, belong to the group of ... biopolymers.
16. The process of doubling the DNA molecule is carried out by the enzyme ....
17. Polynucleotide DNA chains are located opposite each other according to the principle….
18. Adenine nucleotides of DNA and RNA differ….
19. All types of RNA are synthesized in….
20. Scientists… and… have established the macromolecular structure of DNA, and also built a model of the DNA molecule.
Answers to open-type tests (tasks - additions) on the topic:
"Molecular level of life organization" Grade 10.
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| option 1 | option 2 |
| 1.organogenic 2.molecular 3.iodine 4. iron. 5.hydrophilic 6.38.9 kJ 7. radicals 8.destruction 9.nucleotides 10.enzymes 11.pulp 12.glycogen 13.spiral 14. locomotive 15.regular (periodic) 16.replication (reduplication) 17.Uracil 18.gene 19.t-RNA 20.E. Chargaff | 1.none 2.magnesium 3.silicon 4.transport 5.hydrophobic 6.17.2 kJ 7.cholesterol 8.biopolymers 9. amino acids 10.renaturation 11.chitin 12.starch 13.peptide 14.structural 15. irregular (heteropolymers) 16.DNA synthetase (DNA polymerase) 17. complementarity 18.pentose 19.core 20.D. Watson & F. Crick |
Work evaluation criteria:
score 5 with 18-20 correctly completed tasks;
score 4 with 15-17 correctly completed tasks;
score 3 with 12-14 correctly completed tasks;
score 2 with 11 or less correctly completed tasks.
Tests of this type allow you to check knowledge in a short time, and the possibility of guessing is excluded.
Pasechnik N. V. MBOU school No. 17 in Feodosia
Molecular level of organization of living nature. test grade 9 Ι option
1.The connection of two DNA strands into a spiral is carried out by bonds:
a) ionic
b) hydrogen
c) hydrophobic
d) electrostatic
2. Monosaccharides include:
a) lactose, glucose
b) deoxyribose, sucrose
c) glucose, fructose
d) glycogen, maltose
3. Polymers include:
a) starch, protein, cellulose
b) protein, glycogen, fat
c) cellulose, sucrose, starch
4. DNA and RNA monomers are:
a) nitrogenous bases
b) deoxyribose and ribose
d) nucleotides
5. The variable parts of the amino acid are:
a) amino group and carboxyl group
b) radical
c) carboxyl group
d) radical and carboxyl group
6. Which substance is highly soluble in water?
a) fiber b) protein c) glucose d) lipids
7. In what case is the DNA nucleotide composition indicated correctly?
a) ribose, phosphoric acid residue, thymine
b) phosphoric acid, uracil, deoxyribose
c) the remainder of phosphoric acid, deoxyribose, adenine
d) phosphoric acid, ribose, guanine
8. Amino acids in a protein molecule are linked by:
a) ionic bond
b) peptide bond
c) hydrogen bond
d) covalent bond
9. Enzymes are biocatalysts consisting of:
a) proteins b) nucleotides c) lipids d) fats
10. Carbon as an element is a part of:
a) proteins and carbohydrates
b) carbohydrates and lipids
c) carbohydrates and nucleic acids
d) all organic compounds of the cell
Molecular level of organization of living nature. test grade 9 ΙΙ option
1. What is the function of ribosomal RNA?
a) forms active centers of the ribosome
b) transfers information from DNA
c) transfers amino acids to ribosomes
d) all the listed functions
2. Molecules are built from amino acid residues:
a) carbohydrates b) proteins c) lipids d) fats
3. The secondary structure of the protein is maintained:
a) peptide bonds
c) disulfide bonds
d) covalent bonds
4. In the process of bio chemical reactions enzymes:
a) accelerate reactions, but they themselves do not change
b) accelerate reactions and change as a result of the reaction
c) slow down reactions without changing
d) slow down reactions by changing
5. Which of the named chemical compounds is not biopolymer?
a) protein b) glucose c) deoxyribonucleic acid d) cellulose
6. Protein molecules differ from each other:
a) the sequence of alternating amino acids
b) the number of amino acids in the molecule
c) the form of the tertiary structure
d) all the specified features
7. Monomers of nucleic acids are:
a) deoxyribose and phosphate groups
b) ribose or deoxyribose
c) nitrogenous base, carbohydrate, phosphoric acid residue
d) nucleotides
8. What is the function of the transport RNA?
a) transfers amino acids to ribosomes
b) transfers information from DNA
c) forms ribosomes
d) all the listed functions
9. Polysaccharides include:
a) starch, ribose
b) glycogen, glucose
c) cellulose, starch
d) starch, sucrose
10. The cell contains DNA:
a) in the nucleus and mitochondria
b) in the nucleus, cytoplasm and various organelles
c) in the nucleus, mitochondria and cytoplasm
d) in the nucleus, mitochondria, plastids
Molecular level 1 option
1.What is it called organic matter, the molecules of which contain atoms C, O, H performing an energy and building function?
A- nucleic acid B-protein B- carbohydrate G-ATP
2. What carbohydrates are polymers?
A-monosaccharides B-disaccharides B-polysaccharides
3. The group of monosaccharides includes:
A-glucose B-sucrose B-cellulose
4. nucleic acid monomers are:
A-amino acids B- fats B-nucleotides G-glucose
5. a substance in the cell that is necessary for all chemical reactions, playing the role of a solvent for most substances, is ...
A- pollenucleotide B- polypeptide B- water G-polysaccharide
6. Fats perform functions in the cell:
A - transport B - energy
B - catalytic G- informational
7. What compounds in relation to water are lipids?
A - hydrophilic B - hydrophobic
8. What is the importance of fats in animals?
A-structure of membranes B-heat regulation
B- energy source D-water source D-all of the above
9. Protein monomers are:
A-nucleotides B- amino acids B-glucose D-fats
10. what is the name of the reversible process of disruption of the structure of one of the most important organic compounds of the cell, which occurs under the influence of physical and chemical factors?
A-glucose polymerization B-protein denaturation
B- DNA doubling G-oxidation of fats
11. The amount of adenine in DNA is always equal to the amount ...
A - thymine B-guanine B -cytosine G-uracil
12. In what sequence will the nucleotides be located insecond strand of DNA and in i-RNA if the DNA chain has the following composition: TAC - GGT-ATA-GCG-CTT-AAG-CTT-TsAT-ATC
amino acid chain the primary structure of the encoded protein. Write down anticodons
t-RNA, encoding these amino acids.
Molecular level 2 option
Choose one correct answer
1. How many of the known amino acids are involved in protein synthesis?
A-20 B-100 V-23 G-150
2. The highest energy value (in terms of the amount of energy released from 1 g) is possessed by:
A) fat; B) starch; B) protein; D) cellulose
3. What compounds are included in DNA?
A- nitrogenous base, deoxyribose, phosphoric acid residue
B - guanine, ribose, phosphoric acid residue.
B-ribose, glycerin and any amino acid
4.Nucleic acid monomers are:
A-amino acids B-fats B-nucleotides G-glucose
5.What class chemical substances does ribose concern?
A-protein B - carbohydrate B-lipid
6. What nucleotide is not included in the DNA molecule?
A- adenyl B-uridyl B-guanyl G-thymidyl
7. Which nucleic acid is the longest?
A-DNA B-RNA
8.Guanyl nucleotide is complementary nucleotide:
A-thymidyl B-cytidyl B-adenyl G-uridyl
9.The process of doubling DNA molecules is called:
A-replication B-transcription
B-complementarity G-translation.
10.tRNA:
AHave anticodonB.Transfers nucleotides
B. It is located in the cytoplasm D. The molecule consists of two chains
11. The amount of guanine in DNA is always equal to the amount ...
A - thymine B-adenine B -cytosine G-uracil
12. On a piece of codogenic DNA
TAC - AAT-GCG-ATG-CTT-AGT-TTA-GGA –ATT
Build a complementary chain
i-RNA
Using the genetic code table, compose amino acid chain the primary structure of the encoded protein.
Write down t-RNA anticodons, encoding these amino acids.
Verification work on the topic "Molecular standard of living".
Option 1
Task 1 (only one correct answer).
1. The minimum level of life organization at which the ability to exchange substances, energy, information is manifested:
A. biosphere
B. cellular
B.molecular
G. organic
2. What is the most common for all known levels of life organization?
A. elements making up the system
B. the complexity of the structure of the system
B. patterns at each level
G. qualities possessed by this system
3. Which of chemical elements is contained in cells in the smallest amount?
B. oxygen
C. carbon
G. hydrogen
4. The ability of the camel to tolerate thirst well is explained by the fact that fats:
A. preserve water in the body
B. give off water during oxidation
V. create a heat-insulating layer that reduces evaporation
5. In which part of the digestive system does the breakdown of carbohydrates begin?
A. in the small intestine
B. in the stomach
V. in the duodenum
G. in the oral cavity
6. The variable parts of the amino acid are:
A. carboxyl group
B. amino group and carboxyl group
V. radical
G. radical and carboxyl group
7.DNA and RNA monomers are:
A. nitrogenous bases
B. deoxyribose and ribose
B. nitrogenous bases and phosphate groups
G. nucleotides
8. Which of the RNA molecules is the longest?
9. The enzymatic function in the body is performed by:
A. carbohydrates
B. nucleic acids
B. amino acids
10. Which of the chemical elements is simultaneously a part of bone tissue and nucleic acids?
B. Calcium
Task 2.
There are ____ types of nucleic acids in the cell - ____ and _____. These biopolymers are composed of ___________ called ____________. Each nucleotide has ___ components.
The DNA contains the following nitrogenous bases __________, __________, ___________,
The composition of the RNC is __________, _________, ___________, __________.
2. Eliminate unnecessary concept.
A. glycine, valine, isoleucine, thymine, arginine.
B. starch, fructose, glycogen, cellulose, chitin.
3. If a DNA strand contains 18% of G nucleotides, then what should approximately equal the amount of T nucleotide?
Option 2.
Task 1 (only 1 correct answer).
1. Which of the levels is the highest level organization of life?
A. cellular
B. biogeocenotic
B.organic
G. Biosphere
2. Interspecies relationships begin to manifest themselves:
A. at the organismal level
B. at the population-species level
V. at the biogeocenotic level
G. at the biosphere level
3. Which of the properties of water is due to its polarity?
A. thermal conductivity
B. ability to dissolve polar compounds
B. Ability to dissolve non-polar compounds
G. heat capacity
4. Food proteins are digested:
A. in an alkaline environment
B. in an acidic environment
V. in a slightly alkaline environment
G. in a neutral environment
5. Which chemical compound is not a biopolymer?
A. cellulose
B. glucose
6.In which of the named substances do lipids dissolve?
G. hydrochloric acid
7.The primary structure of the protein is retained:
A. hydrophobic bonds
B. peptide bonds
In hydrogen bonds
G. disulfide bonds
8. Enzymes are biological catalysts consisting of:
A. lipidov
B. nucleotides
9. What is the function of t - RNA?
A. Transfer of Amino Acids to Ribosomes
B. forms ribosomes
B. Removal and transfer of information from DNA
G. all the listed functions
10.Secondary protein structure is maintained:
A. peptide bonds
B. hydrogen bonds
Disulfide bonds
G. bonds between acid radicals.
Task 2.
1.Fill in the blanks in the text:
Chemical compounds consisting of ____________ are called polymers. Biopolymers include ___________, ____________ ____________, __________, ___________. Protein monomers are ____________, most carbohydrates are __________, DNA and RNA are ____________.
2. Eliminate the unnecessary concept:
A. cytosine, thymine, glycine, adenine, guanine
B. glycine, chitin, valine, cysteine, alanine
3. If the DNA strand contains 31% of nucleotide A, then what should the amount of nucleotide C be approximately equal to?
Right answers:
Option 1. Option 2
Task 1. Task 1.
10 - b 10 - b
Assignment 2
1.Two. DNA AND RNA. Monomers, nucleotides. 1.Monomers. Proteins, nucleic acids,
3. Adenine, thymine, guanine, cytosine. Adenine, fats, carbohydrates. Amino acids, glucose,
uracil, guanine, cytosine. nucleotides.
2.A. Thymine 2.A. Glycine
B. fructose B. chitin
