semipermeable membrane

简明释义

半渗透膜

英英释义

例句

1.The semipermeable membrane (半透膜) in the cell allows nutrients to enter while keeping toxins out.

细胞中的semipermeable membrane（半透膜）允许养分进入，同时阻止毒素进入。

2.The kidneys filter blood using a semipermeable membrane (半透膜) to remove waste products.

肾脏通过使用semipermeable membrane（半透膜）过滤血液以去除废物。

3.Reverse osmosis systems utilize a semipermeable membrane (半透膜) to purify drinking water.

反渗透系统利用semipermeable membrane（半透膜）来净化饮用水。

4.In osmosis experiments, water moves through a semipermeable membrane (半透膜) to balance solute concentrations.

在渗透实验中，水通过semipermeable membrane（半透膜）移动，以平衡溶质浓度。

5.In biotechnology, a semipermeable membrane (半透膜) is essential for cell culture processes.

在生物技术中，semipermeable membrane（半透膜）对细胞培养过程至关重要。

作文

The concept of a semipermeable membrane is fundamental in various biological and chemical processes. A semipermeable membrane is a barrier that allows certain substances to pass through while blocking others. This selective permeability is crucial for maintaining homeostasis in living organisms. For instance, cell membranes are often described as semipermeable membranes because they regulate the movement of ions and molecules in and out of the cell. In our daily lives, we can observe the effects of semipermeable membranes in several scenarios. One common example is the process of osmosis, where water moves through a semipermeable membrane from an area of low solute concentration to an area of high solute concentration. This movement is essential for cells to maintain their internal environment and function properly. Without semipermeable membranes, cells would not be able to control their internal conditions, leading to potential damage or death.In addition to biological systems, semipermeable membranes are also used in various industrial applications. For example, in water purification processes, semipermeable membranes are employed in reverse osmosis systems to remove impurities from water. These membranes allow water molecules to pass through while filtering out larger particles such as salts and contaminants. This technology is vital for providing clean drinking water in many parts of the world.Moreover, semipermeable membranes play a significant role in medical applications, particularly in dialysis treatments for patients with kidney failure. During dialysis, blood is passed through a semipermeable membrane that separates waste products from the blood, allowing them to be removed while retaining essential blood components. This process mimics the function of healthy kidneys, highlighting the importance of semipermeable membranes in healthcare.Understanding the principles behind semipermeable membranes can also lead to advancements in scientific research. Researchers are exploring new materials and designs for semipermeable membranes that could improve efficiency in various applications, from energy production to environmental protection. For instance, developing membranes that can selectively filter carbon dioxide from industrial emissions could significantly reduce greenhouse gas levels in the atmosphere.In conclusion, the study of semipermeable membranes is essential for understanding both natural processes and technological advancements. These membranes are not just passive barriers; they actively participate in regulating chemical exchanges that are vital for life and industry. As we continue to explore the capabilities of semipermeable membranes, we may unlock new solutions to some of the world's most pressing challenges, including water scarcity, pollution, and health issues. Therefore, recognizing the importance of semipermeable membranes is crucial for anyone interested in biology, chemistry, or environmental science.

半透膜的概念在各种生物和化学过程中是基础性的。半透膜是一种允许某些物质通过而阻止其他物质的屏障。这种选择性通透性对维持生物体的内环境至关重要。例如，细胞膜常被描述为半透膜，因为它们调节离子和分子进出细胞的运动。在我们的日常生活中，我们可以在几个场景中观察到半透膜的影响。一个常见的例子是渗透作用的过程，其中水通过半透膜从低溶质浓度区域移动到高溶质浓度区域。这种运动对于细胞维持其内部环境和正常功能至关重要。如果没有半透膜，细胞将无法控制其内部条件，可能导致损伤或死亡。除了生物系统，半透膜还用于各种工业应用。例如，在水净化过程中，反渗透系统中使用半透膜去除水中的杂质。这些膜允许水分子通过，同时过滤掉较大的颗粒，如盐和污染物。这项技术对于许多地区提供清洁饮用水至关重要。此外，半透膜在医疗应用中也发挥着重要作用，特别是在肾衰竭患者的透析治疗中。在透析过程中，血液通过半透膜，分离废物与血液，使其得以去除，同时保留重要的血液成分。这个过程模拟了健康肾脏的功能，突显了半透膜在医疗保健中的重要性。理解半透膜背后的原理也可能促进科学研究的进展。研究人员正在探索新的材料和设计，以提高各种应用中半透膜的效率，从能源生产到环境保护。例如，开发能够选择性过滤工业排放中的二氧化碳的膜，可能显著降低大气中的温室气体水平。总之，研究半透膜对于理解自然过程和技术进步至关重要。这些膜不仅仅是被动屏障；它们积极参与调节对生命和工业至关重要的化学交换。随着我们继续探索半透膜的能力，我们可能会找到一些世界上最紧迫的挑战的新解决方案，包括水资源短缺、污染和健康问题。因此，认识到半透膜的重要性对于任何对生物学、化学或环境科学感兴趣的人来说都是至关重要的。