纤窍席停顽分怕冠锤担汉拜桓
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细胞生物学（2019秋冬） 2024智慧树满分答案
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
答案: 对
2、判断题：
Plant cells have chloroplasts for photosynthesis whereas animal cells do not have.
A:对
B:错
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
答案: 错
4、判断题：
The DNA is the growing and developing basis of life.
A:对
B:错
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
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.
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.
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.
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.
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.
答案: Cells have a cell nucleus and other organelles enclosed within membranes.
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