hypotonicity

简明释义

英[ˌhaɪpətəˈnɪsɪti]美[haɪpoʊtəˈnɪsəti]

n. 低渗；低张性；张力减退

英英释义

单词用法

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例句

1.Methods After being exposed to colchicine, the gonadal cells of P. westermani were treated by the following procedures: hypotonicity, fixation, dropping onto a slide and staining.

方法 将浙江永嘉地区卫氏并殖吸虫成虫通过秋水仙胺作用后分离睾丸 ，所用试剂均进行预温 ，通过低渗、固定、制片和染色等处理。

2.Methods After being exposed to colchicine, the gonadal cells of P. westermani were treated by the following procedures: hypotonicity, fixation, dropping onto a slide and staining.

方法 将浙江永嘉地区卫氏并殖吸虫成虫通过秋水仙胺作用后分离睾丸 ，所用试剂均进行预温 ，通过低渗、固定、制片和染色等处理。

3.Methods Isolated mouse cardiac ventricular myocytes were subjected to whole-cell patch-clamp to record the hypotonicity activated chloride channel currents.

方法采用急性分离的小鼠心室肌细胞，低渗溶液激活容积敏感性氯通道电流，膜片钳全细胞记录法记录电流。

4.Objective: to evaluate the diagnostic value of spiral ct scan with hypotonicity for gastric cancer.

目的：探讨胃低张螺旋CT扫描诊断胃癌的价值。

5.The nurse explained that the patient was experiencing hypotonicity 低张性 in his muscles, which made it difficult for him to move.

护士解释说，病人正在经历hypotonicity 低张性，这使得他很难移动。

6.In a solution with hypotonicity 低张性, cells may swell as water moves into them.

在一个具有hypotonicity 低张性的溶液中，细胞可能会因为水分进入而肿胀。

7.The doctor noted that the hypotonicity 低张性 of the fluid could lead to cell lysis if not monitored.

医生指出，如果不加以监测，液体的hypotonicity 低张性可能导致细胞溶解。

8.Children with certain neurological conditions may exhibit hypotonicity 低张性 in their limbs.

某些神经系统疾病的儿童可能在四肢上表现出hypotonicity 低张性。

9.During the experiment, we observed that the hypotonicity 低张性 of the environment affected the growth rate of the plants.

在实验过程中，我们观察到环境的hypotonicity 低张性影响了植物的生长速度。

作文

In the realm of biology, understanding the concept of hypotonicity is crucial for grasping how cells interact with their environments. Hypotonicity refers to a condition in which the concentration of solutes outside a cell is lower than the concentration inside the 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 hypotonic solution, water moves into the cell to balance the solute concentrations, leading to swelling and potentially causing the cell to burst if the influx of water is excessive. The significance of hypotonicity extends beyond mere cellular mechanics; it plays a vital role in various biological processes. For instance, in plant cells, the presence of a hypotonic environment causes the cells to become turgid, which is essential for maintaining structural integrity and support. The rigidity provided by turgor pressure, resulting from water entering the cell, allows plants to stand upright and grow towards sunlight. Without hypotonicity, plants would wilt and lose their ability to photosynthesize effectively, ultimately affecting their growth and survival. In medical contexts, hypotonicity can have both therapeutic and detrimental effects. For example, intravenous fluids that are hypotonic can be administered to patients who are dehydrated. These fluids help to rehydrate cells by promoting water influx, thus restoring proper cellular function. However, caution must be exercised, as excessive administration of hypotonic fluids can lead to cellular swelling and potentially result in complications such as cerebral edema. Furthermore, understanding hypotonicity is essential in the field of sports science and exercise physiology. Athletes often need to maintain optimal hydration levels to perform at their best. Consuming hypotonic drinks can be beneficial in situations where rapid rehydration is necessary, such as after intense physical activity. These beverages can quickly enter the bloodstream and hydrate the cells more efficiently than isotonic or hypertonic solutions, which may take longer to equilibrate within the body. In conclusion, hypotonicity is a fundamental concept in biology that affects various aspects of life, from cellular health to plant vitality and human hydration strategies. Recognizing the implications of this phenomenon allows us to appreciate the delicate balance of solute concentrations that sustain life. As we continue to explore the intricacies of biological systems, the role of hypotonicity will undoubtedly remain a topic of interest and research, revealing further insights into the complexities of life at the cellular level.

在生物学领域，理解“低渗透性”这一概念对于掌握细胞如何与其环境相互作用至关重要。“低渗透性”指的是一种状态，其中细胞外部的溶质浓度低于细胞内部的浓度。这种溶质浓度差异产生了一个梯度，影响水通过细胞膜的运动，这一过程被称为渗透。当细胞置于低渗透溶液中时，水会流入细胞以平衡溶质浓度，从而导致细胞膨胀，如果水的流入过多，可能会导致细胞破裂。 “低渗透性”的重要性不仅仅局限于细胞机制，它在各种生物过程中扮演着重要角色。例如，在植物细胞中，低渗透环境的存在使细胞变得膨胀，这对于维持结构完整性和支持至关重要。由于水进入细胞所产生的膨压，使植物能够挺立并朝向阳光生长。如果没有“低渗透性”，植物将会枯萎，失去有效光合作用的能力，最终影响其生长和生存。 在医学背景下，“低渗透性”可以有治疗性和有害的效果。例如，可以向脱水患者输注低渗透液体。这些液体通过促进水的流入帮助细胞重新水合，从而恢复适当的细胞功能。然而，必须小心，因为过量输注低渗透液体可能导致细胞肿胀，并可能引发如脑水肿等并发症。 此外，理解“低渗透性”在体育科学和运动生理学领域也至关重要。运动员往往需要维持最佳的水合水平以达到最佳表现。在剧烈身体活动后，饮用低渗透饮料可能是有益的。这些饮料可以迅速进入血液并更有效地水合细胞，而不是等同或高渗溶液，这些溶液可能需要更长时间才能在体内达到平衡。 总之，“低渗透性”是生物学中的一个基本概念，影响着生命的各个方面，从细胞健康到植物活力，再到人类水合策略。认识到这一现象的影响使我们能够欣赏维持生命所需的溶质浓度之间的微妙平衡。随着我们继续探索生物系统的复杂性，“低渗透性”的作用无疑将继续成为一个研究和兴趣的话题，为我们揭示细胞层面生命复杂性的进一步见解。