centriole

简明释义

英[ˈsentrɪˌəʊl]美[ˈsentrɪˌoʊl]

n. 细胞中心粒；中心体

英英释义

单词用法

同义词

反义词

例句

1.It has the same structure as the mature parental centriole, but is only about half its length.

它同成熟的父代中心粒有相同的结构，但仅仅是父代中心粒长度的一半。

2.The midpiece consists of 5 or 6 mitochondria, a pair of centriole and several vesicles.

中段包括5或6个线粒体，一对中心粒及一些泡状结构。

3.The spermatocyte is of polygonal shape, which contains a centriole appendage formed by the chromatoid body's surrounding the centriole.

初级精母细胞多边形，拟染色体包围中心粒形成中心粒附属物；

4.The pericentriolar material initially is associated only with each parent centriole cylinder.

最初，中心粒外周物质仅与每个父级中心体圆柱体相关。

5.The disappearing of the centriolar adjunct and proximal centriole in succession might be considered as a sign of being mature completely of the spermatid.

中心粒附属物和近端中心粒的相继消失可以看作是成熟的最后标志。

6.Its structure is similar to that of a centriole.

这样的结构和中心粒很相似。

7.The disappearing of the centriolar adjunct and proximal centriole in succession might be considered as a sign of being mature completely of the spermatid.

中心粒附属物和近端中心粒的相继消失可以看作是成熟的最后标志。

8.During cell division, the centriole 中心粒 plays a crucial role in organizing the mitotic spindle.

在细胞分裂过程中，中心粒 centriole 在组织有丝分裂纺锤体中起着至关重要的作用。

9.The centriole 中心粒 is essential for the formation of cilia and flagella in eukaryotic cells.

在真核细胞中，中心粒 centriole 对纤毛和鞭毛的形成是必不可少的。

10.Each cell typically contains two centriole 中心粒, which are arranged at right angles to each other.

每个细胞通常包含两个中心粒 centriole，它们以直角排列。

11.Defects in centriole 中心粒 function can lead to various diseases, including cancer.

中心粒 centriole 功能的缺陷可能导致多种疾病，包括癌症。

12.Researchers are studying how the centriole 中心粒 duplicates during the cell cycle.

研究人员正在研究中心粒 centriole 在细胞周期中的复制方式。

作文

The cell is the fundamental unit of life, and within it are various structures that perform essential functions. One such structure is the centriole, which plays a crucial role in cell division. The centriole is a cylindrical organelle found in the cells of most animals and some plants. It is primarily involved in organizing microtubules, which are vital for maintaining cell shape and enabling cellular movement. During cell division, the centriole duplicates itself and helps form the spindle fibers that separate chromosomes into the daughter cells. This process is essential for ensuring that each new cell receives the correct number of chromosomes, thus maintaining genetic stability across generations.The structure of the centriole consists of nine triplet microtubules arranged in a circular pattern. This unique arrangement allows the centriole to function effectively during the mitotic phase of the cell cycle. When a cell prepares to divide, the two centrioles migrate to opposite poles of the cell, forming what is known as the centrosome. The centrosome acts as a major microtubule-organizing center, guiding the formation of the mitotic spindle. Without the proper functioning of the centriole, cell division can become chaotic, leading to issues such as aneuploidy, where cells have an abnormal number of chromosomes.In addition to its role in cell division, the centriole is also involved in the formation of cilia and flagella, which are important for cell motility and sensory functions. Cilia are short, hair-like structures that protrude from the surface of many eukaryotic cells, while flagella are longer and typically occur singly or in pairs. Both structures are essential for various biological processes, including locomotion and the movement of fluids across cell surfaces. The basal body, which anchors these structures, is derived from the centriole, highlighting its importance beyond just cell division.Research into the centriole has revealed its complex nature and the consequences of its dysfunction. For instance, abnormalities in centriole number or structure have been linked to several diseases, including cancer and ciliopathies. As scientists continue to explore the intricacies of the centriole, they are uncovering potential therapeutic targets for these conditions. Understanding how the centriole operates at both the cellular and molecular levels could lead to breakthroughs in treating diseases caused by its malfunction.In conclusion, the centriole is a vital component of cellular architecture, integral to the processes of cell division and the formation of motile structures. Its proper function is essential for the health and stability of organisms. As research progresses, the centriole remains a focal point in cell biology, providing insights into the complexities of life at the microscopic level. By studying the centriole, we not only enhance our understanding of cellular mechanics but also pave the way for advancements in medical science, ultimately improving human health and disease management.

细胞是生命的基本单位，其中包含执行基本功能的各种结构。其中一个结构是中心粒，它在细胞分裂中发挥着至关重要的作用。中心粒是一种圆柱形细胞器，存在于大多数动物和一些植物的细胞中。它主要负责组织微管，微管对维持细胞形状和促进细胞运动至关重要。在细胞分裂过程中，中心粒自我复制，并帮助形成将染色体分离到子细胞中的纺锤丝。这个过程对于确保每个新细胞接收正确数量的染色体至关重要，从而在代际之间保持遗传稳定性。中心粒的结构由九个三联微管以圆形排列组成。这种独特的排列使得中心粒在细胞周期的有丝分裂阶段能够有效地发挥作用。当细胞准备分裂时，两个中心粒迁移到细胞的相对极，形成称为中心体的结构。中心体作为主要的微管组织中心，引导有丝分裂纺锤体的形成。如果中心粒无法正常工作，细胞分裂可能会变得混乱，导致诸如异常染色体数（单倍体）的情况，即细胞拥有非正常数量的染色体。除了在细胞分裂中的作用外，中心粒还参与纤毛和鞭毛的形成，这对于细胞的运动和感官功能至关重要。纤毛是从许多真核细胞表面突出的短发状结构，而鞭毛则更长，通常单独或成对出现。这两种结构对各种生物过程至关重要，包括运动和液体在细胞表面上的运动。基体结构是锚定这些结构的，它源自中心粒，这突显了它在细胞分裂之外的重要性。对中心粒的研究揭示了其复杂的性质及其功能障碍的后果。例如，中心粒数量或结构的异常与多种疾病有关，包括癌症和纤毛病。随着科学家们继续探索中心粒的复杂性，他们正在发现这些疾病的潜在治疗靶点。了解中心粒在细胞和分子水平上的运作，可能会导致治疗其功能失调引起的疾病的突破。总之，中心粒是细胞结构的重要组成部分，对于细胞分裂和运动结构的形成至关重要。其正常功能对生物体的健康和稳定至关重要。随着研究的进展，中心粒仍然是细胞生物学的焦点，为微观层面上生命的复杂性提供了见解。通过研究中心粒，我们不仅增强了对细胞机制的理解，还为医学科学的进步铺平了道路，最终改善人类的健康和疾病管理。