macrogamete

简明释义

英[ˌmækrəʊˈɡæmiːt]美[ˌmækroʊˈɡæmiːt]

n. 巨配子；[生物] 大配子

英英释义

单词用法

同义词

反义词

例句

1.We discussed the formation of microgamete and macrogamete and ookinete, exflagellating microgametocyte in the mosquito.

对雄、雌配子的形成，雄配子的体外出丝及动合子的形成过程进行了讨论。

2.We discussed the formation of microgamete and macrogamete and ookinete, exflagellating microgametocyte in the mosquito.

对雄、雌配子的形成，雄配子的体外出丝及动合子的形成过程进行了讨论。

3.We discussed the formation of microgamete and macrogamete.

我们讨论了雄、雌配子的形成。

4.Researchers observed the fusion of a macrogamete (大配子) and a microgamete under a microscope.

研究人员在显微镜下观察到macrogamete（大配子）与微配子的融合。

5.In some algae, the macrogamete (大配子) can be found attached to the substrate, waiting for fertilization.

在某些藻类中，macrogamete（大配子）可以附着在基底上，等待受精。

6.The macrogamete (大配子) is typically larger than its counterpart, the microgamete, which plays a role in fertilization.

通常情况下，macrogamete（大配子）比其对应物微配子更大，后者在受精中起作用。

7.The development of a macrogamete (大配子) is essential for the continuation of the species in many aquatic organisms.

在许多水生生物中，macrogamete（大配子）的发展对物种的延续至关重要。

8.In the life cycle of certain protists, the female produces a large cell known as a macrogamete (大配子) that is crucial for reproduction.

在某些原生生物的生命周期中，雌性产生一种称为macrogamete（大配子）的大细胞，这对繁殖至关重要。

作文

In the world of biology, understanding the reproductive processes of various organisms is essential for grasping the complexities of life. One fascinating aspect of reproduction is the formation of gametes, which are the reproductive cells that unite during fertilization. Among these gametes, we find the term macrogamete, which refers to the larger female gamete in species that exhibit sexual reproduction. This term is particularly relevant in the study of certain protozoa and algae, where the distinction between microgametes and macrogametes plays a crucial role in their life cycles.The macrogamete is significant because it is typically non-motile and provides the necessary nutrients for the developing embryo after fertilization. In contrast, the male counterpart, the microgamete, is usually smaller and motile, allowing it to swim towards the macrogamete for successful fertilization. This differentiation in size and function highlights the evolutionary strategies that different species have developed to ensure reproductive success.For instance, in organisms like Plasmodium, which causes malaria, the macrogamete is formed within the female mosquito's gut. Once fertilized by the microgamete, the resulting zygote develops into an ookinete, which then penetrates the mosquito's gut wall and forms oocysts. This process is critical for the parasite's life cycle and transmission to humans, demonstrating how the roles of gametes are intricately linked to the survival of the species.Moreover, the concept of the macrogamete extends beyond single-celled organisms. In higher plants, the ovule contains a large female gamete known as the egg cell, which can be seen as analogous to the macrogamete. When pollen, which carries the male gametes, lands on the stigma of a flower, fertilization occurs, leading to the formation of seeds. This process is vital for plant reproduction and the continuation of plant species.Understanding the role of the macrogamete also has implications in fields such as agriculture and conservation. For example, knowledge about the reproductive strategies of certain plants can help in developing better crop varieties that are more resilient to environmental stressors. Additionally, in conservation biology, understanding the reproductive mechanisms of endangered species can aid in breeding programs aimed at increasing their populations.In conclusion, the study of the macrogamete is a window into the intricate world of reproduction in various organisms. By exploring how these larger female gametes function and interact with their male counterparts, we gain insights into the evolutionary adaptations that have shaped life on Earth. The significance of the macrogamete in both unicellular and multicellular organisms underscores the importance of reproductive biology in understanding the diversity and complexity of life. As research continues to uncover more about these processes, the knowledge gained will undoubtedly contribute to advancements in science and the preservation of biodiversity.

在生物学的世界中，理解各种生物的繁殖过程对于把握生命的复杂性至关重要。繁殖细胞的形成是一个迷人的方面，这些细胞是在受精过程中结合的生殖细胞。在这些生殖细胞中，我们发现了术语macrogamete，它指的是在表现出有性繁殖的物种中较大的雌性生殖细胞。这个术语在某些原生动物和藻类的研究中尤为相关，因为在它们的生命周期中，微生殖细胞和大生殖细胞之间的区别起着至关重要的作用。macrogamete之所以重要，是因为它通常是非运动性的，并为受精后的胚胎发育提供必要的营养。相比之下，雄性对应物——微生殖细胞通常较小且具有运动能力，使其能够游向大生殖细胞以实现成功受精。这种大小和功能的差异突显了不同物种为确保繁殖成功而发展出的进化策略。例如，在引起疟疾的疟原虫中，macrogamete是在雌性蚊子的肠道内形成的。一旦被微生殖细胞受精，产生的合子将发育成ookinete，然后穿透蚊子的肠壁并形成囊体。这个过程对寄生虫的生命周期和向人类的传播至关重要，展示了生殖细胞的角色与物种生存之间的密切联系。此外，macrogamete的概念超越了单细胞生物。在高等植物中，胚珠包含一个大的雌性生殖细胞，称为卵细胞，这可以看作是大生殖细胞的类似物。当花粉（携带雄性生殖细胞）落在花的柱头上时，受精发生，导致种子的形成。这个过程对植物的繁殖和物种的延续至关重要。理解macrogamete的作用在农业和保护领域也有重要意义。例如，了解某些植物的繁殖策略可以帮助开发更具抗逆性的作物品种。此外，在保护生物学中，理解濒危物种的繁殖机制可以帮助制定旨在增加其种群的繁殖计划。总之，研究macrogamete为我们提供了一个窥视各种生物繁殖世界的窗口。通过探索这些较大的雌性生殖细胞如何发挥作用以及与雄性对应物的相互作用，我们获得了对塑造地球生命的进化适应的深刻见解。macrogamete在单细胞和多细胞生物中的重要性强调了生殖生物学在理解生命的多样性和复杂性中的重要性。随着研究不断揭示有关这些过程的更多信息，获得的知识无疑将有助于科学的进步和生物多样性的保护。