protists

简明释义

英[ˈprəʊtɪst]美[ˈproʊtɪsts]

n. [生物] 原生生物

英英释义

单词用法

同义词

反义词

例句

1.Some phytoplankton are bacteria, some are protists, and most are single-celled plants.

有些浮游植物是细菌，有些是原生生物，而大多数则是单细胞植物。

2.Living creatures are classified into plants, animals and protists.

生物体可分别归类为植物、动物及原生生物。

3.Six different broad approaches: the plants, the animals, the fungi, the protists, the little things -- the bacteria and the Archaea bacteria.

六个广泛的取向：植物、动物、真菌、原生生物、细菌、古菌。

4.Most thallus plants are currently classified as complex protists.

大部分的原植体现在被归属为复杂的原生生物。

5.Six different broad approaches: the plants, the animals, the fungi, the protists, the little things -- the bacteria and the Archaea bacteria.

六个广泛的取向：植物、动物、真菌、原生生物、细菌、古菌。

6.In fact, both these groups have such distinctive features that some biologists prefer to classify them as protists rather than fungi.

实际上，这两大群具有不同的特征，生物学家宁愿把它们归为原生动物而不是真菌。

7.Photosynthsis occurs only in the chlorophyll-containing cells of green plants, algae, and certain protists and bacteria.

光合作用只发生在包含叶绿素的植物细胞，藻类，某些原生动物和细菌内。

8.Some protists (原生生物) can cause diseases in humans, such as malaria.

一些原生生物可以引起人类疾病，例如疟疾。

9.The study of protists (原生生物) is essential for understanding the evolution of eukaryotic cells.

研究原生生物对理解真核细胞的进化至关重要。

10.In freshwater environments, protists (原生生物) play a crucial role in nutrient cycling.

在淡水环境中，原生生物在养分循环中发挥着关键作用。

11.Some protists (原生生物) can photosynthesize, contributing to the oxygen supply in aquatic habitats.

一些原生生物能够进行光合作用，为水生栖息地提供氧气。

12.Many marine ecosystems rely on protists (原生生物) for primary production.

许多海洋生态系统依赖于原生生物进行初级生产。

作文

Protists are a diverse group of organisms that belong to the kingdom Protista. This kingdom is often considered a catch-all category for eukaryotic organisms that do not fit into the other kingdoms such as plants, animals, and fungi. The term protists (原生生物) encompasses a wide variety of life forms, including unicellular and multicellular organisms. They can be found in various environments, from freshwater to marine ecosystems, and even in moist terrestrial habitats.One of the most fascinating aspects of protists (原生生物) is their incredible diversity. They include organisms such as amoebas, paramecia, and algae. Amoebas are known for their ability to change shape and move using pseudopodia, while paramecia are covered in tiny hair-like structures called cilia that help them swim. Algae, on the other hand, are photosynthetic organisms that can be unicellular or multicellular and play a crucial role in aquatic ecosystems by producing oxygen and serving as a food source for many marine organisms.The ecological significance of protists (原生生物) cannot be overstated. They are essential components of food webs, particularly in aquatic environments. Many protists (原生生物), such as phytoplankton, serve as primary producers, converting sunlight into energy through photosynthesis. This process not only supports the growth of other organisms but also contributes to the global carbon cycle. Furthermore, some protists (原生生物) act as decomposers, breaking down organic matter and recycling nutrients back into the ecosystem.In addition to their ecological roles, protists (原生生物) have significant implications for human health and industry. Certain protists (原生生物) are pathogens that can cause diseases in humans, animals, and plants. For example, Plasmodium, a genus of parasitic protists (原生生物), is responsible for malaria, a disease that affects millions of people worldwide. Understanding the biology and life cycles of these pathogenic protists (原生生物) is crucial for developing effective treatments and prevention strategies.Moreover, protists (原生生物) have been utilized in various industrial processes. For instance, certain types of algae are harvested for their biofuels, which are considered a renewable energy source. Additionally, protists (原生生物) like diatoms are used in the production of filters and abrasives due to their unique silica cell walls.However, the classification of protists (原生生物) remains a topic of debate among scientists. Advances in molecular biology and genetics have revealed that this kingdom is not monophyletic, meaning that it does not contain all descendants of a common ancestor. As a result, some researchers advocate for reorganizing the classification of these organisms to reflect evolutionary relationships more accurately.In conclusion, protists (原生生物) represent a fascinating and complex group of organisms that play vital roles in our ecosystems and have significant implications for human health and industry. Their diversity, ecological importance, and potential applications make them an essential area of study in biology. By continuing to explore the world of protists (原生生物), we can gain a deeper understanding of life on Earth and how these organisms contribute to the balance of our environment.

原生生物是一类多样化的生物，属于原生生物界。这个界通常被视为一个收容所的分类，包含了不符合植物、动物和真菌等其他界的真核生物。术语protists（原生生物）涵盖了各种生命形式，包括单细胞和多细胞生物。它们可以在各种环境中找到，从淡水到海洋生态系统，甚至在潮湿的陆地栖息地中。protists（原生生物）最迷人的方面之一是它们的惊人多样性。它们包括变形虫、草履虫和藻类等生物。变形虫以其改变形状和使用伪足移动的能力而闻名，而草履虫则被覆盖着称为纤毛的小毛发结构，这些结构帮助它们游泳。另一方面，藻类是光合生物，可以是单细胞或多细胞，在水生生态系统中发挥着至关重要的作用，通过产生氧气并作为许多海洋生物的食物来源。protists（原生生物）的生态重要性不容小觑。它们是食物链的重要组成部分，特别是在水生环境中。许多protists（原生生物），如浮游植物，是初级生产者，通过光合作用将阳光转化为能量。这个过程不仅支持其他生物的生长，还对全球碳循环做出贡献。此外，一些protists（原生生物）充当分解者，分解有机物质，将养分回收到生态系统中。除了它们的生态角色，protists（原生生物）对人类健康和工业也具有重要影响。某些protists（原生生物）是病原体，可能导致人类、动物和植物的疾病。例如，疟原虫是一种寄生性protists（原生生物），负责疟疾，这是一种影响全球数百万人口的疾病。了解这些病原性protists（原生生物）的生物学和生命周期对于开发有效的治疗和预防策略至关重要。此外，protists（原生生物）已被用于各种工业过程。例如，某些类型的藻类被收获作为生物燃料，被认为是一种可再生能源。此外，像硅藻这样的protists（原生生物）因其独特的硅质细胞壁而被用于过滤器和磨料的生产。然而，protists（原生生物）的分类仍然是科学家们讨论的话题。分子生物学和遗传学的进步揭示了这个界并不是单系的，这意味着它并不包含所有共同祖先的后代。因此，一些研究人员提倡重新组织这些生物的分类，以更准确地反映进化关系。总之，protists（原生生物）代表了一类迷人而复杂的生物，在我们的生态系统中发挥着重要作用，并对人类健康和工业具有重要影响。它们的多样性、生态重要性和潜在应用使它们成为生物学研究的一个重要领域。通过继续探索protists（原生生物）的世界，我们可以更深入地理解地球上的生命，以及这些生物如何为我们环境的平衡做出贡献。