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起止时间:2021-03-01到2021-06-25
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Lecture 1-Morphology and Structure of Bacteria, Physiology of Bacteria （细菌的形态与结构、细菌的生理) Test 1
1、 The main function of the bacterial cell wall is
A:Biosynthesis
B:Energy production
C:Participation in material exchange
D:Respiration
E:Maintain the shape of bacteria
答案: Maintain the shape of bacteria
2、 The special structure of bacteria with anti-phagocytosis is
A:Cell wall
B:Capsule
C:spores
D:Flagella
E:Pili
答案: Capsule
3、 Bacterial spores
A:is a reproduction form of bacteria.
B:is the sexual genetic material of bacteria.
C:only in Enterobacteriaceae
D:usually formed under hypoxic conditions
E:Is a dormant body formed by bacteria under adverse environmental conditions
答案: Is a dormant body formed by bacteria under adverse environmental conditions
4、 Spore-related bacterial characteristics are:
A:Anti-phagocytosis
B:Toxin production
C:Heat resistance
D:Adhesion to the infected area
E:Aggressiveness
答案: Heat resistance
5、 What does not belong to the basic structure of bacteria is
A:Flagella
B:Cytoplasm
C:Cell membrane
D:Nuclear material
E:Cell wall
答案: Flagella
6、 The main components of endotoxin are
A:Peptidoglycan
B:Protein
C:Flagella
D:Nucleic acid
E:Lipopolysaccharide
答案: Lipopolysaccharide
7、 Regarding the bacterial L-type, the wrong statement
A:is mainly caused by the defect of peptidoglycan structure
B:Can be formed in in vitro tests
C:is Polymorphic
D:is Isolation and culture in high osmotic pressure medium
E:is Loss of ability to produce toxins to make them less pathogenic
答案: is Loss of ability to produce toxins to make them less pathogenic
8、 The way of bacteria growth and reproduction is
A:Binary fission
B:mitosis
C:sporogenesis
D:replication
E:budding
答案: Binary fission
9、 The commonly used medium for observing bacterial motility is
A:Liquid medium
B:semisolid medium
C:blood agar plate medium
D:Chocolate agar medium
E:Anaerobic medium
答案: semisolid medium
10、 Which of the following substances is not a synthetic metabolite of bacteria
A:Endotoxin
B:Exotoxin
C:Antitoxin
D:Antibiotic
E:Bacteriocin
答案: Antitoxin
Lecture 2-Bacterial genetics and variation Test 2
1、 The factor related to bacterial conjugation is
A:R determinant
B:F factor
C:V factor
D:X factor
E:Col factor
答案: F factor
2、 One of the incorrect descriptions of drug-resistant plasmids is
A:Consists of RTF and resistance determinants
B:RTF and F plasmids have similar functions
C:The transfer of R plasmid is the main reason for the spread of drug resistance between bacteria
D:The emergence of bacterial resistance is due to mutations in the R plasmid gene
E:Drug resistance determinants can encode bacterial multidrug resistance
答案: RTF and F plasmids have similar functions
3、 The main method of plasmid transfer between bacteria is
A:Join
B:Transduction
C:Transformation
D:Mutation
E:Lysogenic conversion
答案: Transformation
4、 The incorrect description of the plasmid is
A:Plasmids are genetic material other than the nucleus of bacteria
B:Plasmid is a necessary structure for bacteria
C:Plasmid can replicate by itself
D:The plasmid is double-stranded circular DNA
E:Plasmids can exist independently in bacteria
答案: Plasmid is a necessary structure for bacteria
5、 Which of the following is not the cause of bacterial mutation
A:Mutation
B:Transformation
C:Cell wall destruction
D:Transduction
E:Lysogenic transition
答案: Cell wall destruction
6、 Of the following cells, which is not affected by phages
A:Lymphocyte
B:Fungal cell
C:Bacterial cells
D:Spirochete cell
E:Chlamydia cell
答案: Lymphocyte
7、 Which of the following is not characteristic of bacteriophage
A:The individual is small
B:With cell structure
C:Composed of capsid and nucleic acid
D:Obligate intracellular parasite
E:Multiply by replication
答案: With cell structure
8、 Genetic material of bacteriophage
A:RNA
B:DNA
C:RNA or DNA
D:DNA and RNA
E:Plasmid
答案: RNA or DNA
9、 Prophage means
A:Phage entering the host bacteria
B:Free bacteriophage that has not been infected with bacteria
C:Phages not yet assembled
D:Mature progeny bacteriophage
E:Phage genome integrated into the host chromosome
答案: Phage genome integrated into the host chromosome
10、 About the phage description, which of the following is wrong
A:Is a virus that attacks microorganisms
B:Has strict host specificity
C:Composed of nucleic acids and proteins
D:Contains both DNA and RNA nucleic acids
E:Resistance to physical and chemical factors is stronger than normal bacteria
答案: Contains both DNA and RNA nucleic acids
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