2020 2020春Biochemistry （KELI TIAN 田克立）(山东大学) 最新满分章节测试答案
- Chapter 1 Structure and Function of Proteins Unit test
- Chapter 2 Enzymes Unit test
- Chapter 3 Carbohydrate Metabolism Unit test
- Chapter 4 Lipid Metabolism Unit test
- Chapter5 Biological Oxidation Unit test
- Chapter 6 Digestion and Absorption of Protein and Amino Acids Metabolism Unit test
- Chapter 7 Metabolism of non-nutritional substances Unit test
- Chapter 7 Biochemistry of the Blood Unit test
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本课程起止时间为:2020-02-15到2020-06-21
本篇答案更新状态:已完结
Chapter 1 Structure and Function of Proteins Unit test
1、 问题:The chemical bond between the A and B chains of insulin is
选项：
A:peptide bond
B:disulfide bond
C:phosphoester bond
D:ionic bond
E:hydrophobic force
答案: 【disulfide bond】
2、 问题:The characteristic of secondary structure in myoglobin is to have more
选项：
A:α-helix
B:β-pleated sheet
C:β-turn
D:Ωloop
E:βαβ motif
答案: 【α-helix】
3、 问题:Autoclave disinfection is to make bacterial proteins
选项：
A:denaturation
B:precipitation
C:ionization
D:dissolved
E:degradation
答案: 【denaturation】
4、 问题:The protein whose structural change can cause sickle cell anemia is
选项：
A:lactate dehydrogenase
B:pyruvate kinase
C:insulin
D:myoglobin
E:hemoglobin
答案: 【hemoglobin】
5、 问题:The amino acid that can form disulfide bond in protein structure is
选项：
A:Trp
B:Met
C:Cys
D:Pro
E:Ser
答案: 【Cys】
6、 问题:Protein denaturation is due to
选项：
A:conformation destruction of protein
B:depolymerization of protein subunits
C:proteolysis
D:changes in the primary structure of protein
E:breaking of peptide bonds
答案: 【conformation destruction of protein】
7、 问题:Secondary structures of protein mainly include
选项：
A:α helix
B:β conformation
C:β turn
D:motif
E:random coil
答案: 【α helix;
β conformation;
β turn;
random coil】
8、 问题:Which of the following descriptions about tertiary structure of protein are correct
选项：
A:All polypeptide chains with tertiary structure have biological activities.
B:Most hydrophilic groups are located on the surface of tertiary structure.
C:The stability of tertiary structure is maintained by covalent bonds.
D:Tertiary structure is three-dimensional arrangement of all atoms in a polypeptide chain.
E:Formation of tertiary structure is the result of interaction between side chain groups of a polypeptide chain.
答案: 【Most hydrophilic groups are located on the surface of tertiary structure.;
Tertiary structure is three-dimensional arrangement of all atoms in a polypeptide chain.;
Formation of tertiary structure is the result of interaction between side chain groups of a polypeptide chain.】
9、 问题:Compared with myoglobin, hemoglobin is characterized by
选项：
A:Having quaternary structure
B:Containing heme
C:Having cooperative effects between subunits during combination with oxygen
D:The oxygen dissociation curve is S-shaped.
E:The main function is to transport oxygen.
答案: 【Having quaternary structure;
Having cooperative effects between subunits during combination with oxygen;
The oxygen dissociation curve is S-shaped.;
The main function is to transport oxygen.】
10、 问题:The UV absorption properties of protein are due to the presence of
选项：
A:tryptophan
B:glutamic acid
C:tyrosine
D:aspartic acid
E:histidine
答案: 【tryptophan;
tyrosine】
11、 问题:Which of the following amino acids contain hydroxyl group
选项：
A:serine
B:phenylalanine
C:tyrosine
D:threonine
E:methionine
答案: 【serine;
tyrosine;
threonine】
12、 问题:When the pH > pI of protein, the proteins have positive charge.
选项：
A:正确
B:错误
答案: 【错误】
13、 问题:Glutathione acts as an antioxidant through its thiol group (-SH) in the molecule.
选项：
A:正确
B:错误
答案: 【正确】
14、 问题:Only those peptides with larger molecular weight containing 10 or more amino acids have biological activities.
选项：
A:正确
B:错误
答案: 【错误】
15、 问题:Each subunit in the quaternary structure of a protein can exert its function independently.
选项：
A:正确
B:错误
答案: 【错误】
Chapter 2 Enzymes Unit test
1、 问题:Which of the following statements about active center of enzyme is not true?
选项：
A:Binding of enzyme with substrate is limited to the small area of enzyme structure which is closely related to enzyme activity.
B:The essential groups may locate either in or outside the active center.
C:Usually consists of several amino acid residues adjacent to each other in the primary structure
D:Zymogen activation is actually the process of forming complete active center.
E:Binding of substrates can induce conformational change of the active center of enzyme.
答案: 【Usually consists of several amino acid residues adjacent to each other in the primary structure】
2、 问题:When [S]=2Km, the velocity of an enzyme catalyzed reaction equals to
选项：
A:Vmax
B:2/3Vmax
C:3/2Vmax
D:2Vmax
E:1/2Vmax
答案: 【2/3Vmax】
3、 问题:The effect of temperature on the rate of enzymatic reaction is
选项：
A:When the temperature rises, the reaction rate increases, which is exactly the same as that of ordinary catalysts.
B:Low temperature may denature the most enzymes.
C:The optimum temperature is the characteristic constant of enzyme and is not related to the reaction time.
D:The optimum temperature is not the characteristic constant of enzyme. The longer the reaction time, the lower the optimum temperature.
E:All enzymes have the same optimum temperature.
答案: 【The optimum temperature is not the characteristic constant of enzyme. The longer the reaction time, the lower the optimum temperature.】
4、 问题:The inhibitory effect of organophosphorus insecticide on cholinesterase belongs to
选项：
A:Reversible inhibition
B:Competitive inhibition
C:Noncompetitive inhibition
D:Uncompetitive inhibition
E:Irreversible inhibition
答案: 【Irreversible inhibition】
5、 问题:Which of the following is the reversible inhibitor?
选项：
A:organophosphorous compound
B:organic mercury compound
C:organoarsenic compound
D:cyanide
E:sulfonamides
答案: 【sulfonamides】
6、 问题:Competitive reversible inhibitors of enzyme can make
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