第二章 单元测试
1、判断题：Prokaryotic and eukaryotic cells are distinguished by the size and the types of internal structures, especially if there is nuclear envelope.
A:对
B:错
正确答案:【对】
2、判断题：Plant cells have chloroplasts for photosynthesis whereas animal cells do not have.
A:对
B:错
正确答案:【对】
3、判断题：The mesosome is plasma membrane enfolding and involved in cell division and energy releasing reactions of eukaryotic cells.
A:对
B:错
正确答案:【错】
4、判断题：The DNA is the growing and developing basis of life.
A:对
B:错
正确答案:【错】
5、判断题：All cells share similar structure, composition and metabolic features: Plasma membrane, DNA/RNA, and Ribosome.
A:对
B:错
正确答案:【对】
6、单选题：Definition of Nucleoid
A:It is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.
B:It is the smallest and simplest self-replicating prokaryote.
C:It is an irregularly shaped region within the cell of a prokaryote that contains all or most of the genetic material.
D:Cells have a cell nucleus and other organelles enclosed within membranes.
E:It is folded invaginations in the plasma membrane of bacteria.
正确答案:【It is an irregularly shaped region within the cell of a prokaryote that contains all or most of the genetic material.】
7、单选题：Definition of Mycoplasma
A:It is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.
B:It is the smallest and simplest self-replicating prokaryote.
C:It is an irregularly shaped region within the cell of a prokaryote that contains all or most of the genetic material.
D:Cells have a cell nucleus and other organelles enclosed within membranes.
E:It is folded invaginations in the plasma membrane of bacteria.
正确答案:【It is the smallest and simplest self-replicating prokaryote.】
8、单选题：Definition of Prokaryotic cell
A:It is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.
B:It is the smallest and simplest self-replicating prokaryote.
C: It is an irregularly shaped region within the cell of a prokaryote that contains all or most of the genetic material.
D:Cells have a cell nucleus and other organelles enclosed within membranes.
E:It is folded invaginations in the plasma membrane of bacteria.
正确答案:【It is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.】
9、单选题：Definiton of Mesosome
A:It is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.
B:It is the smallest and simplest self-replicating prokaryote.
C:It is an irregularly shaped region within the cell of a prokaryote that contains all or most of the genetic material.
D:Cells have a cell nucleus and other organelles enclosed within membranes.
E:It is folded invaginations in the plasma membrane of bacteria.
正确答案:【It is folded invaginations in the plasma membrane of bacteria.】
10、单选题：Definition of Eukaryotic cell
A:It is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.
B:It is the smallest and simplest self-replicating prokaryote.
C:It is an irregularly shaped region within the cell of a prokaryote that contains all or most of the genetic material.
D:Cells have a cell nucleus and other organelles enclosed within membranes.
E: It is folded invaginations in the plasma membrane of bacteria.
正确答案:【Cells have a cell nucleus and other organelles enclosed within membranes.】
第三章 单元测试
1、判断题：The light source in a fluorescent microscope produces a beam of fluorescence that travels through a filter, which blocks all wavelengths except that which is capable of exciting the fluorophore (荧光基团).
A:对
B:错
正确答案:【错】
2、判断题：Transmission electron microscopes (TEMs) form images using electrons that are transmitted through an ultrathin specimen.
A:对
B:错
正确答案:【对】
3、判断题：
Negative Staining is well suited for examining very small particulate materials, such as viruses, ribosomes and protein complexes.
A:对
B:错
正确答案:【对】
4、判断题：The fluorescent proteins (FPs) can be used to study the spatial and temporal distribution of RNA in living cells.
A:对
B:错
正确答案:【错】
5、判断题：
The electron microscope can provide vastly greater resolution than the light microscope.
A:对
B:错
正确答案:【对】
6、单选题：Definition of Laser scanning confocal microscopy
A: It is based on the observation that two single-stranded nucleic acid molecules of complementary base sequence can form a double stranded hybrid.
B:Technique whereby two different types of cells (from one organism or from different species) are joined to produce one cell with one, continuous plasma membrane.
C:The specimen is illuminated by a finely focused laser beam that rapidly scans across the specimen at a single depth, thus illuminating only a thin plane (or “optical section”) within the specimen.
D:The smallest distance between two points on a specimen that can still be distinguished as two separate entities.
E:They are made by identical immune cells from a unique parent cell.
正确答案:【The specimen is illuminated by a finely focused laser beam that rapidly scans across the specimen at a single depth, thus illuminating only a thin plane (or “optical section”) within the specimen.】
7、单选题：Definition of Resolution/Resolving Power
A:It is based on the observation that two single-stranded nucleic acid molecules of complementary base sequence can form a double stranded hybrid.
B:Technique whereby two different types of cells (from one organism or from different species) are joined to produce one cell with one, continuous plasma membrane.
C:The specimen is illuminated by a finely focused laser beam that rapidly scans across the specimen at a single depth, thus illuminating only a thin plane (or “optical section”) within the specimen.
D:The smallest distance between two points on a specimen that can still be distinguished as two separate entities.
E:They are made by identical immune cells from a unique parent cell.
正确答案:【The smallest distance between two points on a specimen that can still be distinguished as two separate entities. 】
8、单选题：Definition of Nucleic acid Hybridization
A:It is based on the observation that two single-stranded nucleic acid molecules of complementary base sequence can form a double stranded hybrid.
B:Technique whereby two different types of cells (from one organism or from different species) are joined to produce one cell with one, continuous plasma membrane.
C:The specimen is illuminated by a finely focused laser beam that rapidly scans across the specimen at a single depth, thus illuminating only a thin plane (or “optical section”) within the specimen.
D:The smallest distance between two points on a specimen that can still be distinguished as two separate entities.
E:They are made by identical immune cells from a unique parent cell.
正确答案:【It is based on the observation that two single-stranded nucleic acid molecules of complementary base sequence can form a double stranded hybrid. 】
9、单选题：Definition of Monoclonal Antibodies
A:It is based on the observation that two single-stranded nucleic acid molecules of complementary base sequence can form a double stranded hybrid.
B:Technique whereby two different types of cells (from one organism or from different species) are joined to produce one cell with one, continuous plasma membrane.
C:The specimen is illuminated by a finely focused laser beam that rapidly scans across the specimen at a single depth, thus illuminating only a thin plane (or “optical section”) within the specimen.
D:The smallest distance between two points on a specimen that can still be distinguished as two separate entities.
E:They are made by identical immune cells from a unique parent cell.
正确答案:【The smallest distance between two points on a specimen that can still be distinguished as two separate entities.】
10、单选题：Definition of Cell Fusion/Cell Hybridization
A:It is based on the observation that two single-stranded nucleic acid molecules of complementary base sequence can form a double stranded hybrid.
B:Technique whereby two different types of cells (from one organism or from different species) are joined to produce one cell with one, continuous plasma membrane.
C:The specimen is illuminated by a finely focused laser beam that rapidly scans across the specimen at a single depth, thus illuminating only a thin plane (or “optical section”) within the specimen.
D:The smallest distance between two points on a specimen that can still be distinguished as two separate entities.
E:They are made by identical immune cells from a unique parent cell.
正确答案:【Technique whereby two different types of cells (from one organism or from different species) are joined to produce one cell with one, continuous plasma membrane.】
第四章 单元测试
1、单选题：
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