vesicles

简明释义

英[ˈvɛsɪkəlz]美[ˈvɛsɪkəlz]

n. 囊泡；小水泡（vesicle 的复数）

英英释义

单词用法

同义词

反义词

例句

1.The number of lipid globules and matrix vesicles increased.

基质中脂质小体及基质小囊等成分增多；

2.Ultrastructurally, the tumor cells had tapering nuclei with long, delicate cytoplasmic processes associated with prominent subplasmalemmal pinocytotic vesicles.

在超微结构上，肿瘤细胞具有逐渐变细的细胞核，且细胞核具有长而细腻的胞浆突起，并与突出的浆膜下的胞吞小泡相关。

3.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。

4.If there is only one lipid bilayer, they are called unilamellar vesicles.

如果只有一层磷脂双分子层，则它们称为单层脂质体。

5.The actions of microtubule organizing centers and coated vesicles were discussed.

讨论了包被囊泡和微管组织中心可能的作用。

6.Such tubular vesicles can branch and fragment before they fuse with plasma membrane.

这种管状的运输小泡与质膜融合之前能够产生分支和碎片。

7.Viral transport occurred in microtubule-dependent, endosomal vesicles.

病毒的转运发生在微管依赖的内体小泡。

8.Meanwhile, dictyosome secreted vesicles into the vacuoles.

同时，高尔基体分泌小泡进入液泡。

9.In the study of cellular biology, researchers often examine vesicles to understand their role in transporting materials within cells.

在细胞生物学研究中，研究人员常常检查囊泡以了解它们在细胞内运输物质的作用。

10.The neurotransmitter is stored in vesicles before being released into the synaptic cleft.

神经递质储存在囊泡中，然后释放到突触间隙。

11.During the experiment, we observed that the vesicles fused with the plasma membrane.

在实验过程中，我们观察到囊泡与细胞膜融合。

12.Certain drugs are designed to target specific vesicles to improve their efficacy.

某些药物被设计为靶向特定的囊泡以提高其疗效。

13.The formation of vesicles is crucial for endocytosis and exocytosis processes.

囊泡的形成对于内吞作用和外排作用至关重要。

作文

In the field of biology, understanding cellular structures is crucial for grasping how life functions at a microscopic level. One such structure that plays a significant role in various cellular processes is the vesicles. 囊泡 are small membrane-bound sacs that transport and store substances within a cell. They are essential for processes like metabolism, communication, and the transport of proteins and other molecules. Vesicles can be classified into different types based on their function. For instance, transport vesicles 囊泡 move materials between organelles, while secretory vesicles 囊泡 release substances outside the cell. The formation of these vesicles 囊泡 occurs through a process called budding, where a portion of a membrane pinches off to create a new sac. This mechanism is vital for maintaining cellular organization and function. One of the most well-known types of vesicles 囊泡 is the synaptic vesicles 囊泡, found in neurons. These vesicles 囊泡 store neurotransmitters, which are chemicals that transmit signals from one neuron to another. When a nerve impulse reaches the end of a neuron, these vesicles 囊泡 fuse with the cell membrane and release their contents into the synaptic cleft, allowing communication between neurons. This process is fundamental to everything from muscle contraction to mood regulation. Another important type of vesicles 囊泡 is the lysosome, which contains enzymes that break down waste materials and cellular debris. Lysosomes play a critical role in cellular digestion and recycling. When cells are damaged or no longer functional, lysosomes help to dispose of these components, ensuring that the cell remains healthy and efficient. Without the action of these vesicles 囊泡, cells would accumulate waste, leading to dysfunction and disease. Moreover, vesicles 囊泡 are also involved in the immune response. Certain immune cells use vesicles 囊泡 to engulf pathogens and present pieces of these invaders on their surface, alerting other immune cells to the threat. This process is essential for the body’s ability to fight infections and maintain overall health. In recent years, research has increasingly focused on the role of vesicles 囊泡 in drug delivery systems. Scientists are exploring how to utilize these natural carriers to transport therapeutic agents directly to target cells, minimizing side effects and improving treatment efficacy. This innovative approach has the potential to revolutionize medicine, offering more precise and effective treatments for various diseases. In conclusion, vesicles 囊泡 are indispensable components of cellular life. From facilitating communication between neurons to aiding in waste disposal and immune responses, their functions are diverse and critical. As research continues to unveil the complexities of these tiny structures, our understanding of biology and medicine will undoubtedly deepen, paving the way for new discoveries and advancements in health care.

在生物学领域，理解细胞结构对于掌握生命如何在微观层面上运作至关重要。其中一个在各种细胞过程中发挥重要作用的结构是囊泡。囊泡是小型膜结合囊，负责在细胞内运输和储存物质。它们对代谢、通讯以及蛋白质和其他分子的运输等过程至关重要。 囊泡可以根据其功能分类。例如，运输囊泡将材料在细胞器之间移动，而分泌囊泡则释放物质到细胞外。这些囊泡的形成是通过一种称为出芽的过程发生的，即膜的一部分向内凹陷，形成一个新的囊。这个机制对于维持细胞的组织和功能至关重要。 最著名的囊泡类型之一是突触囊泡，存在于神经元中。这些囊泡储存神经递质，即从一个神经元传递信号到另一个神经元的化学物质。当神经冲动到达神经元的末端时，这些囊泡与细胞膜融合，将其内容物释放到突触间隙，从而允许神经元之间的通信。这个过程对从肌肉收缩到情绪调节的所有事物都是基础。 另一个重要的囊泡类型是溶酶体，它包含分解废物和细胞碎片的酶。溶酶体在细胞消化和回收中发挥着关键作用。当细胞受损或不再功能时，溶酶体有助于处理这些成分，确保细胞保持健康和高效。如果没有这些囊泡的作用，细胞将积累废物，导致功能障碍和疾病。 此外，囊泡在免疫反应中也起着重要作用。某些免疫细胞使用囊泡吞噬病原体，并在其表面呈现这些入侵者的部分，以提醒其他免疫细胞威胁。这一过程对身体抵抗感染和维持整体健康至关重要。 近年来，研究越来越关注囊泡在药物递送系统中的作用。科学家正在探索如何利用这些自然载体将治疗剂直接运输到目标细胞，从而最小化副作用并提高治疗效果。这一创新方法有可能彻底改变医学，为各种疾病提供更精确和有效的治疗。 总之，囊泡是细胞生活中不可或缺的组成部分。从促进神经元之间的沟通到帮助废物处理和免疫反应，它们的功能多样且至关重要。随着研究不断揭示这些微小结构的复杂性，我们对生物学和医学的理解无疑会加深，为新的发现和医疗进步铺平道路。