hypertonic solution

简明释义

高渗溶液

英英释义

例句

1.When a cell is placed in a hypertonic solution, it loses water and shrinks.

当细胞置于高渗溶液中时，它会失去水分并缩小。

2.The hypertonic solution caused the plant cells to become plasmolyzed.

该高渗溶液导致植物细胞发生质壁分离。

3.Rinsing the wound with a hypertonic solution can help draw out excess fluid.

用高渗溶液冲洗伤口可以帮助抽出多余的液体。

4.In a lab experiment, we added salt to create a hypertonic solution for osmosis studies.

在实验室实验中，我们添加盐以创建一个用于渗透研究的高渗溶液。

5.Doctors may use a hypertonic solution to treat patients with cerebral edema.

医生可能会使用高渗溶液来治疗脑水肿的患者。

作文

In the field of biology and chemistry, understanding the concept of a hypertonic solution is crucial for grasping how cells interact with their environment. A hypertonic solution is defined as a solution that has a higher concentration of solutes compared to another solution, typically the cytoplasm of a cell. This difference in solute concentration creates a gradient that affects the movement of water across the cell membrane through a process known as osmosis.When a cell is placed in a hypertonic solution, water molecules move out of the cell to balance the solute concentrations on both sides of the membrane. This movement can lead to a decrease in the volume of the cell, causing it to shrink or undergo a process known as crenation in red blood cells. Understanding this phenomenon is essential for various applications, including medical treatments and laboratory experiments.For instance, when administering intravenous fluids, healthcare professionals must carefully choose the type of solution based on the patient's condition. If a patient is dehydrated, a hypertonic solution may be used to draw water into the bloodstream from surrounding tissues, thereby increasing blood volume. However, if used improperly, it can lead to complications such as cellular dehydration and damage.In plant cells, the effects of a hypertonic solution are similarly significant. When plant cells are exposed to a hypertonic solution, the water leaves the vacuole, causing the cell membrane to pull away from the cell wall in a process called plasmolysis. This can result in wilting and loss of turgor pressure, which is vital for maintaining the plant's structure and rigidity.The concept of a hypertonic solution also extends beyond biological systems into everyday life. For example, saltwater is a natural hypertonic solution compared to freshwater. When marine organisms are placed in freshwater, they may experience osmotic stress due to the influx of water, while freshwater organisms placed in saltwater face the opposite challenge. This understanding helps in the conservation of aquatic species and in designing environments that support their survival.Moreover, the study of hypertonic solutions has implications in food preservation and processing. By creating a hypertonic solution through the addition of salt or sugar, food can be preserved as the high solute concentration inhibits the growth of bacteria and molds. This principle is widely used in pickling and curing processes, extending the shelf life of various foods.In conclusion, the importance of understanding hypertonic solutions cannot be overstated. Whether in the context of human health, plant biology, or food science, the principles governing how these solutions affect cells and organisms are fundamental to many scientific and practical applications. As we continue to explore the complexities of biological systems, the role of hypertonic solutions will remain a key area of study, influencing both research and real-world practices.

在生物学和化学领域，理解高渗溶液的概念对于掌握细胞如何与其环境相互作用至关重要。高渗溶液被定义为一种溶液，其溶质浓度高于另一种溶液，通常是细胞的细胞质。这种溶质浓度的差异会产生一个梯度，影响水通过称为渗透作用的过程在细胞膜之间的移动。当细胞置于高渗溶液中时，水分子会从细胞内移出，以平衡膜两侧的溶质浓度。这种移动可能导致细胞体积的减少，使其收缩或经历红细胞的变形过程。理解这一现象对于各种应用至关重要，包括医疗治疗和实验室实验。例如，在静脉输液时，医疗专业人员必须根据患者的状况仔细选择溶液类型。如果患者脱水，可能会使用高渗溶液将水从周围组织引入血流，从而增加血容量。然而，如果使用不当，可能会导致细胞脱水和损伤等并发症。在植物细胞中，高渗溶液的影响同样显著。当植物细胞暴露于高渗溶液时，水分离开液泡，导致细胞膜从细胞壁上拉开，这一过程称为质壁分离。这可能导致植物枯萎和失去膨压，而膨压对维持植物的结构和刚性至关重要。高渗溶液的概念不仅限于生物系统，还延伸到日常生活中。例如，盐水相对于淡水是一种自然的高渗溶液。当海洋生物置于淡水中时，由于水的涌入，它们可能会经历渗透压力，而淡水生物置于盐水中则面临相反的挑战。这种理解有助于保护水生物种，并设计支持其生存的环境。此外，研究高渗溶液在食品保存和加工中也有重要意义。通过添加盐或糖来创建高渗溶液，可以保存食品，因为高溶质浓度抑制了细菌和霉菌的生长。这一原理广泛应用于腌制和腌制过程中，延长了各种食品的保质期。总之，理解高渗溶液的重要性不容小觑。无论是在人体健康、植物生物学还是食品科学的背景下，控制这些溶液如何影响细胞和生物的原则都是许多科学和实际应用的基础。随着我们继续探索生物系统的复杂性，高渗溶液的作用将仍然是一个关键的研究领域，影响着研究和现实世界的实践。