2024知到答案 细胞生物学（2019秋冬） 最新知到智慧树满分章节测试答案

第二章 单元测试

1、 问题:

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、 问题:

Plant cells have chloroplasts for photosynthesis whereas animal cells do not have. 

选项：
A:对
B:错
答案: 【对】

3、 问题:

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、 问题:

The DNA is the growing and developing basis of life.

选项：
A:对
B:错
答案: 【错】

5、 问题:

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、 问题:

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、 问题:

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、 问题:

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、 问题:

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、 问题:

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.】

第三章 单元测试

1、 问题:

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). 

选项：
A:对
B:错
答案: 【错】