centrioles

简明释义

英[ˈsɛntrɪəʊlz]美[ˈsɛntrɪoʊlz]

n. [细胞]中心粒（centriole 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Every animal cell (but not plant cells) contains a pair of centrioles.

每个动物细胞跟植物细胞不同，都有一对中心体。

2.Microtubules are also used in the construction of centrioles , basal bodies , cilia and flagella.

微管还用于建造中心粒，基体，纤毛和鞭毛。

3.Prior to cell division it replicates, and the sister centrioles move to opposite ends of the cell to lie within the spindle - organizing structure, the centrosome.

它在细胞分裂之前复制，其中一个中心粒移向细胞的另一端，组织纺锤体和中心体。

4.The arrows and arrowheads indicate the mother centrioles and the deuterosomes, respectively.

箭头和箭头头分别指示母中心粒和摇篮体。

5.Under electron microscope, it was found that in some cells the nuclear membrane disappeared partly, chromatin became broadly granular and two centrioles were jointed by spindle fibers.

在透射电镜下观察到有细胞核膜消失，染色质变成粗颗粒状．中心粒一分为二，两中心粒之间还有纺锤丝牵引；

6.Under electron microscope, it was found that in some cells the nuclear membrane disappeared partly, chromatin became broadly granular and two centrioles were jointed by spindle fibers.

在透射电镜下观察到有细胞核膜消失，染色质变成粗颗粒状．中心粒一分为二，两中心粒之间还有纺锤丝牵引；

7.Centrioles lies at the base of the central canal.

在中央管的基部发现有中心粒。

8.Microtubules are also used in the construction of centrioles, basal bodies, cilia and flagella.

微管还用于建造中心粒，基体，纤毛和鞭毛。

9.The duplication of centrioles 中心粒 occurs during the S phase of the cell cycle.

在细胞周期的S期，中心粒 centrioles 会发生复制。

10.The function of centrioles 中心粒 is essential for proper cell cycle progression.

对于细胞周期的正常进行，中心粒 centrioles 的功能是必不可少的。

11.During cell division, the centrioles 中心粒 play a crucial role in organizing the mitotic spindle.

在细胞分裂过程中，中心粒 centrioles 在组织有丝分裂纺锤体中发挥着至关重要的作用。

12.In animal cells, there are typically two centrioles 中心粒 located at right angles to each other.

在动物细胞中，通常有两个互相垂直的中心粒 centrioles。

13.Research has shown that defects in centrioles 中心粒 can lead to various diseases, including cancer.

研究表明，中心粒 centrioles 的缺陷可能导致多种疾病，包括癌症。

作文

Centrioles are fascinating structures found in the cells of many living organisms. These cylindrical organelles play a crucial role in cell division and the organization of the microtubules that make up the cytoskeleton. To fully appreciate the importance of centrioles (中心粒), we must first understand their structure and function within the cell. Each cell typically contains a pair of centrioles (中心粒), which are located near the nucleus in a region known as the centrosome. The centrioles (中心粒) are made up of nine sets of triplet microtubules arranged in a circular pattern. This unique arrangement is essential for their function during cell division, particularly in the process known as mitosis. During mitosis, the centrioles (中心粒) replicate and move to opposite ends of the cell, helping to organize the spindle fibers that pull apart the chromosomes, ensuring that each new daughter cell receives an identical set of genetic material. In addition to their role in cell division, centrioles (中心粒) are also involved in the formation of cilia and flagella, which are hair-like structures that protrude from the surface of some cells. These structures are vital for movement and sensing the environment. For example, in human cells, cilia help to move mucus out of the respiratory tract, while sperm cells use flagella to swim towards the egg for fertilization. Interestingly, not all cells contain centrioles (中心粒). For instance, higher plant cells and some fungi lack these organelles, relying instead on other mechanisms for organizing their microtubules. This highlights the diversity of cellular structures and functions across different organisms. Research has shown that abnormalities in centrioles (中心粒) can lead to various diseases, including cancer. For example, cancer cells often have an abnormal number of centrioles (中心粒), which can result in improper cell division and tumor formation. Understanding the role of centrioles (中心粒) in cell biology is therefore essential for developing targeted therapies for such diseases. In conclusion, centrioles (中心粒) are integral components of the cellular machinery that enable proper cell division and organization. Their unique structure and diverse functions underscore their importance in both normal physiology and disease processes. As research continues to uncover the complexities of cellular functions, the study of centrioles (中心粒) remains a key area of interest for scientists seeking to understand the fundamental principles of life.

中心粒是许多生物细胞中发现的迷人结构。这些圆柱形细胞器在细胞分裂和微管的组织中发挥着至关重要的作用，微管构成了细胞骨架。为了充分理解centrioles（中心粒）的重要性，我们必须首先了解它们在细胞内的结构和功能。每个细胞通常包含一对centrioles（中心粒），它们位于靠近细胞核的区域，称为中心体。centrioles（中心粒）由九组三联微管以圆形模式排列而成。这种独特的排列对于它们在细胞分裂过程中的功能至关重要，特别是在有丝分裂过程中。在有丝分裂期间，centrioles（中心粒）会复制并移动到细胞的两端，帮助组织纺锤丝，这些纺锤丝拉开染色体，确保每个新的子细胞接收到一套相同的遗传物质。除了在细胞分裂中的作用外，centrioles（中心粒）还参与纤毛和鞭毛的形成，这些结构是一些细胞表面突出的毛状结构。这些结构对运动和感知环境至关重要。例如，在人体细胞中，纤毛有助于将粘液从呼吸道中移动，而精子细胞则使用鞭毛游向卵子进行受精。有趣的是，并非所有细胞都含有centrioles（中心粒）。例如，高等植物细胞和一些真菌缺乏这些细胞器，而是依靠其他机制来组织它们的微管。这突显了不同生物体之间细胞结构和功能的多样性。研究表明，centrioles（中心粒）的异常可能导致各种疾病，包括癌症。例如，癌细胞通常具有异常数量的centrioles（中心粒），这可能导致细胞分裂不当和肿瘤形成。因此，理解centrioles（中心粒）在细胞生物学中的作用对于开发针对这种疾病的靶向疗法至关重要。总之，centrioles（中心粒）是细胞机械的组成部分，对于正常细胞分裂和组织至关重要。它们独特的结构和多样的功能突显了它们在正常生理和疾病过程中的重要性。随着研究不断揭示细胞功能的复杂性，对centrioles（中心粒）的研究仍然是科学家们寻求理解生命基本原理的关键领域。