cytokinesis

简明释义

英[ˌsaɪtəʊkɪˈniːsɪs]美[ˌsaɪtoʊkɪˈnisɪs]

n. [细胞] 胞质分裂；细胞浆移动

英英释义

单词用法

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例句

1.Different from other chemosynthesis drugs, the adverse reactions caused by most reconstituted cytokinesis due to biology activity of themselves.

和其他化学合成类药物不同的是，大多数细胞因子引起的药物不良反应和其本身的生物学活性有关。

2.Objective to evaluate their genotoxic risk in nurses occupationally exposed to antineoplastic drugs with chromosomal aberration test and cytokinesis-block micronucleus (CBMN) test.

目的用染色体畸变试验和胞质阻断微核试验来评价职业性接触抗癌药物的护士的遗传毒性危险性。

3.Objective to evaluate their genotoxic risk in nurses occupationally exposed to antineoplastic drugs with chromosomal aberration test and cytokinesis-block micronucleus (CBMN) test.

目的用染色体畸变试验和胞质阻断微核试验来评价职业性接触抗癌药物的护士的遗传毒性危险性。

4.The activation of leukocyte mediated by the cytokinesis the direct result of SIRS.

由炎性细胞因子介导的白细胞活化就是SIRS的直接结果。

5.In animal cells, cytokinesis 细胞质分裂 occurs through a cleavage furrow that pinches the cell in two.

在动物细胞中，cytokinesis 细胞质分裂 通过一个收缩沟将细胞一分为二。

6.During the cell division process, cytokinesis 细胞质分裂 ensures that the cytoplasm is divided into two daughter cells.

在细胞分裂过程中，cytokinesis 细胞质分裂 确保细胞质被分成两个子细胞。

7.Plant cells undergo cytokinesis 细胞质分裂 by forming a new cell wall between the two daughter cells.

植物细胞通过在两个子细胞之间形成新的细胞壁来进行 cytokinesis 细胞质分裂。

8.Errors during cytokinesis 细胞质分裂 can lead to multinucleated cells.

在 cytokinesis 细胞质分裂 过程中出现错误可能导致多核细胞的形成。

9.The timing of cytokinesis 细胞质分裂 is crucial for proper cell cycle progression.

cytokinesis 细胞质分裂 的时机对于细胞周期的正常进展至关重要。

作文

Cytokinesis is a crucial process in the cell cycle, occurring at the end of mitosis or meiosis. It is the final step that leads to the separation of the cytoplasm into two distinct daughter cells. Understanding cytokinesis (细胞质分裂) is essential for comprehending how organisms grow, develop, and repair tissues. During this phase, the cell undergoes significant changes that ensure each daughter cell receives an equal share of the cytoplasmic contents and organelles. The process of cytokinesis begins after the chromosomes have been separated during mitosis. In animal cells, a structure known as the contractile ring forms just beneath the cell membrane. This ring is composed of actin and myosin filaments, which are proteins that play a key role in muscle contraction. As these filaments interact, they constrict the cell membrane, creating a cleavage furrow that deepens until the cell is pinched in two.In contrast, plant cells cannot form a cleavage furrow due to their rigid cell walls. Instead, they undergo a different mechanism during cytokinesis (细胞质分裂). Vesicles containing cell wall materials gather at the center of the cell, where they fuse to form a structure called the cell plate. As more vesicles join in, the cell plate expands outward until it fuses with the existing cell membrane, resulting in two separate daughter cells, each encased in its own cell wall.The significance of cytokinesis extends beyond mere cell division; it plays a vital role in tissue growth and regeneration. For instance, when an organism sustains an injury, cytokinesis enables the rapid production of new cells to replace those that were damaged. This regenerative ability is particularly evident in organisms like salamanders, which can regrow entire limbs through extensive cell division and subsequent cytokinesis.Moreover, errors in cytokinesis can lead to serious consequences, including cancer. If cytokinesis fails to occur correctly, it can result in cells with an abnormal number of chromosomes, a condition known as aneuploidy. This genetic instability can promote uncontrolled cell division, leading to tumor formation. Therefore, understanding the mechanisms and regulation of cytokinesis is crucial for developing therapies for various diseases, including cancer.In summary, cytokinesis (细胞质分裂) is not merely a technical term within the realm of biology; it represents a fundamental aspect of life itself. It ensures that all living organisms can grow, heal, and maintain their cellular integrity. As researchers continue to explore the intricacies of cytokinesis, we gain deeper insights into the complexities of life and the potential for medical advancements that could arise from such knowledge.