皮皮学,免费搜题
登录
搜题
【多选题】
甘特图包含以下三个含义包括( )
A.
以文字描述显示项目活动
B.
以图形或表格的形式显示活动
C.
现在是一种通用的显示进度的方法
D.
构造时应包括实际日历天和持续时间,并且不要将周末和节假日算在进度之内
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】Which of the following is used in the naming of epithelial types?
A.
S hape of cells in the basal layer
B.
N umber of layers of epithelial cells
C.
P resence of a basal lamina
D.
S ize of the nuclei
E.
P resence of cytokeratin
【单选题】The following are not epithelial features( ).
A.
More cells, less stroma
B.
Rich in blood vessels and lymphatic vessels
C.
Have polarity
D.
Abundant nerve endings
【简答题】The characteristics of epithelial tissue
【单选题】附面层分离的内因和外因分别是( )和( )。
A.
层流本身的不稳定 物体表面的扰动
B.
空气具有粘性 物体表面弯曲从而出现逆压梯度
C.
层流本身的不稳定 物体表面弯曲从而出现逆压梯度
【判断题】交流电路中,容抗表示电容对交流电流的阻碍作用。
A.
正确
B.
错误
【简答题】上皮附着 epithelial attachment
【单选题】立面图绘图步聚是顺序是( ) 1. 标注尺寸和文字说明等。 2. 画墙轮廓和门窗线 3 . 画基准线(轴线和层高线) 4 . 按规定画门窗图例构造。
A.
1234
B.
3241
C.
3142
D.
2341
【多选题】Why is the polarity crucial for epithelial function?
A.
The apical and basal faces of an epithelium are different: each contains a different set of molecules that reflect the polarized organization of the individual epithelial cells: each has a top and a bottom, with different properties and functions. This polarity is crucial for epithelial function.
B.
For example, the simple columnar epithelium that lines the small intestine of a mammal. It mainly consists of two intermingled cell types: absorptive cells, which take up nutrients, and goblet cells (so called because of their shape), which secrete the mucus that protects and lubricates the gut lining. Both cell types are polarized.
C.
The absorptive cells import food molecules from the gut lumen through their apical surface and export these molecules from their basal surface into the underlying tissues. To do this, absorptive cells require different sets of membrane transport proteins in their apical and basal plasma membranes. The goblet cells also have to be polarized, but in a different way: they have to synthesize mucus and then discharge it from their apical end only; their Golgi apparatus, secretory vesicles, and cytoskeleton are all polarized so as to bring this about.
D.
For both types of epithelial cells, polarity depends on the junctions that the cells form with one another and with the basal lamina. These cell junctions in turn control the arrangement of an elaborate system of membrane-associated intracellular proteins that create the polarized organization of the cytoplasm.
【简答题】The noun form for epithelial is
【单选题】Which of the following statements regarding epithelial cells in the urinary system is correct?
A.
Caudate epithelial cells originate from the upper urethra
B.
Transitional cells originate from the upper urethra, ureters, bladder, or renal pelvis
C.
Cells from the proximal renal tubule are usually round in shape
D.
Squamous epithelium lines the vagina, urethra, and wall of the urinary bladder
相关题目:
【多选题】Why is the polarity crucial for epithelial function?
A.
The apical and basal faces of an epithelium are different: each contains a different set of molecules that reflect the polarized organization of the individual epithelial cells: each has a top and a bottom, with different properties and functions. This polarity is crucial for epithelial function.
B.
For example, the simple columnar epithelium that lines the small intestine of a mammal. It mainly consists of two intermingled cell types: absorptive cells, which take up nutrients, and goblet cells (so called because of their shape), which secrete the mucus that protects and lubricates the gut lining. Both cell types are polarized.
C.
The absorptive cells import food molecules from the gut lumen through their apical surface and export these molecules from their basal surface into the underlying tissues. To do this, absorptive cells require different sets of membrane transport proteins in their apical and basal plasma membranes. The goblet cells also have to be polarized, but in a different way: they have to synthesize mucus and then discharge it from their apical end only; their Golgi apparatus, secretory vesicles, and cytoskeleton are all polarized so as to bring this about.
D.
For both types of epithelial cells, polarity depends on the junctions that the cells form with one another and with the basal lamina. These cell junctions in turn control the arrangement of an elaborate system of membrane-associated intracellular proteins that create the polarized organization of the cytoplasm.