apical cell

简明释义

顶细胞

英英释义

例句

1.In epithelial tissue, the apical cell layer is responsible for absorption and secretion.

在上皮组织中，顶端细胞层负责吸收和分泌。

2.In flowering plants, the apical cell helps in the formation of flowers.

在开花植物中，顶端细胞有助于花的形成。

3.The structure of the apical cell is crucial for understanding plant growth.

理解植物生长的关键在于顶端细胞的结构。

4.Researchers observed how the apical cell responds to environmental changes.

研究人员观察了顶端细胞如何对环境变化作出反应。

5.The apical cell plays a vital role in the development of new tissues.

顶端细胞在新组织的发育中起着至关重要的作用。

作文

In the study of biology, particularly in the field of plant anatomy, the term apical cell refers to a specialized type of cell that is located at the tip of a growing structure, such as a root or shoot. These cells play a crucial role in the growth and development of plants. The apical cell is responsible for the primary growth of the plant, allowing it to elongate and expand into new areas. This process is vital for the plant's ability to access sunlight, water, and nutrients from the soil. The structure of the apical cell is unique; it often has a larger size compared to other cells in the vicinity, and its shape can vary depending on the type of plant and its specific growth needs. The apical cell divides through a process known as mitosis, producing new cells that will differentiate into various types of tissues, including those that make up leaves, stems, and roots. Furthermore, the apical cell is influenced by various environmental factors such as light, gravity, and water availability. For instance, phototropism is a phenomenon where the apical cell responds to light by directing growth towards the light source. This adaptive behavior ensures that the plant maximizes its exposure to sunlight, which is essential for photosynthesis. Similarly, gravitropism allows the apical cell to grow in response to gravity, ensuring that roots grow downward while shoots grow upward. In addition to their role in growth, apical cells also have significant implications for plant breeding and agriculture. Understanding how these cells function can help scientists and farmers develop crops that are more resilient to environmental stressors, such as drought or disease. By manipulating the growth patterns of the apical cell, researchers can potentially enhance yields and improve food security. Moreover, the study of apical cells extends beyond just plants. In animals, similar concepts apply to stem cells, which share characteristics with apical cells in terms of their ability to divide and differentiate into various cell types. This parallel highlights the fundamental importance of these cells in both plant and animal life. In conclusion, the apical cell is a vital component of plant biology, facilitating growth and adaptation to the environment. Its unique properties and functions not only contribute to the overall health and productivity of plants but also offer insights into broader biological processes. As we continue to explore the intricacies of plant development, the significance of the apical cell will undoubtedly remain a focal point in our understanding of life sciences.

在生物学的研究中，特别是在植物解剖学领域，术语apical cell指的是一种位于生长结构顶端的特殊类型细胞，例如根或茎。这些细胞在植物的生长和发育中发挥着至关重要的作用。apical cell负责植物的主要生长，使其能够延伸并扩展到新的区域。这个过程对植物获取阳光、水分和土壤养分的能力至关重要。apical cell的结构是独特的；与周围的其他细胞相比，它通常具有较大的尺寸，形状可以根据植物的类型及其特定的生长需求而变化。apical cell通过一种称为有丝分裂的过程进行分裂，产生的新细胞将分化成各种类型的组织，包括构成叶子、茎和根的组织。此外，apical cell还受到光、重力和水分可用性等各种环境因素的影响。例如，向光性是一种现象，其中apical cell对光线作出反应，通过朝向光源的方向引导生长。这种适应性行为确保植物最大限度地接触阳光，而阳光对于光合作用至关重要。同样，向地性使得apical cell能够对重力作出反应，确保根向下生长而茎向上生长。除了在生长中的作用外，apical cells在植物育种和农业中也具有重要意义。了解这些细胞的功能可以帮助科学家和农民培育出更具抗逆性的作物，以应对干旱或疾病等环境压力。通过操控apical cell的生长模式，研究人员可以潜在地提高产量并改善粮食安全。此外，apical cells的研究不仅限于植物。在动物中，类似的概念适用于干细胞，这些细胞在分裂和分化成各种细胞类型的能力上与apical cells相似。这一平行关系突显了这些细胞在植物和动物生命中的基本重要性。总之，apical cell是植物生物学的重要组成部分，促进了生长和对环境的适应。它独特的属性和功能不仅有助于植物的整体健康和生产力，还为更广泛的生物过程提供了见解。随着我们继续探索植物发育的复杂性，apical cell的重要性无疑将在我们对生命科学的理解中保持焦点。