2024知到答案 细胞生物学（2019秋冬） 完整智慧树网课章节测试答案

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.

选项：
A:对
B:错
答案: 【对】

2、判断题：
Plant cells have chloroplasts for photosynthesis whereas animal cells do not have. 

选项：
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. 

选项：
A:对
B:错
答案: 【错】

4、判断题：
The DNA is the growing and developing basis of life.

选项：
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.

选项：
A:对
B:错
答案: 【对】

6、单选题：
Definition of  Nucleoid 

选项：
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

选项：
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

选项：
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

选项：
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

选项：
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.】