eucaryotic

简明释义

英[ˌjuːkæriˈɒtɪk]美[juːkeəriːˈɑːtɪk]

真核的

英英释义

单词用法

同义词

反义词

例句

1.It is the control center of living activity and the hallmark to distinguish eucaryotic cells from prokaryotic ones.

它还是生命活动的控制中心，也是真核细胞和原核细胞的最大区别。

2.The nucleolus is the most obvious structure seen in the nucleus of a eucaryotic cell when viewed in the light microscope.

核仁是在光学显微镜下看到细胞核中最明显结构。

3.Histones are the principal structural proteins of eucaryotic chromosomes.

组蛋白是真核细胞染色体中的主要结构蛋白。

4.Mitochondria is an important organelle in eucaryotic cells. Known as the power houses of cells, mitochondria play an important role in inducing the apoptosis of cells.

线粒体是真核细胞重要的细胞器，是细胞的能量工厂，在细胞的凋亡中也起着非常重要的作用。

5.Mitochondria are very important organelles in eucaryotic cells. They provide energy for various life activities and are important participants of apoptosis.

线粒体为细胞的各种生命活动提供能量，也是细胞凋亡的重要参与者。

6.Figure Microtubules help to arrange the organelles in a eucaryotic cell.

微管协助细胞器在真核细胞内布局。

7.Most plants and animals are composed of eucaryotic 真核 cells that contain a nucleus.

大多数植物和动物由包含细胞核的eucaryotic 真核细胞组成。

8.The study of eucaryotic 真核 organisms helps scientists understand complex life forms.

研究eucaryotic 真核生物有助于科学家理解复杂的生命形式。

9.Yeast is an example of a single-celled eucaryotic 真核 organism used in baking.

酵母是一种用于烘焙的单细胞eucaryotic 真核生物的例子。

10.In contrast to prokaryotes, eucaryotic 真核 cells have membrane-bound organelles.

与原核生物相比，eucaryotic 真核细胞具有膜结合的细胞器。

11.Many eucaryotic 真核 cells reproduce through a process called mitosis.

许多eucaryotic 真核细胞通过称为有丝分裂的过程进行繁殖。

作文

The study of life forms on Earth has led to the classification of organisms into various categories. One of the most significant classifications is based on the cellular structure of organisms. Organisms can be broadly divided into two groups: prokaryotic and eucaryotic (真核生物). Prokaryotic organisms, such as bacteria, are simple and lack a nucleus, whereas eucaryotic organisms possess a well-defined nucleus and complex cellular structures. This distinction is crucial for understanding the diversity of life and the evolutionary processes that have shaped it. Eucaryotic cells are characterized by their compartmentalized structure, which allows for more efficient functioning. They contain membrane-bound organelles, such as the mitochondria, endoplasmic reticulum, and Golgi apparatus, each performing specific functions that are essential for the cell's survival. For instance, mitochondria are known as the powerhouses of the cell because they generate adenosine triphosphate (ATP), the energy currency of the cell. This energy is vital for various cellular activities, including metabolism, growth, and reproduction. In addition to their complex internal structures, eucaryotic organisms are also more diverse in terms of size and form. They include a wide range of life forms, from single-celled organisms like yeast and amoeba to multicellular organisms such as plants, animals, and fungi. This diversity is a result of the evolutionary adaptations that have allowed eucaryotic organisms to occupy various ecological niches. The evolution of eucaryotic cells is believed to have occurred through a process called endosymbiosis, where one organism lives inside another in a mutually beneficial relationship. This theory suggests that the ancestors of modern-day mitochondria and chloroplasts were once free-living prokaryotic organisms that were engulfed by ancestral eucaryotic cells. Over time, these engulfed organisms became integral parts of the host cells, leading to the complex cellular structures we see today. Understanding the differences between prokaryotic and eucaryotic organisms is not only important for biological sciences but also has practical implications in fields such as medicine, agriculture, and biotechnology. For example, many antibiotics target specific features of prokaryotic cells, making them effective against bacterial infections without harming eucaryotic human cells. In agriculture, genetically modified eucaryotic crops can be engineered to resist pests or tolerate harsh environmental conditions, thereby increasing food production. In conclusion, the classification of organisms into prokaryotic and eucaryotic groups provides a fundamental framework for studying biology. The complexity and diversity of eucaryotic life forms highlight the intricate processes of evolution and adaptation that have occurred over millions of years. By exploring the characteristics and significance of eucaryotic organisms, we gain valuable insights into the mechanisms of life and the interconnectedness of all living beings on our planet.

地球上生命形式的研究导致了对生物进行各种分类。其中一个重要的分类是基于生物的细胞结构。生物可以大致分为两类：原核生物和真核生物（eucaryotic）。原核生物，如细菌，结构简单，没有细胞核，而真核生物则具有明确的细胞核和复杂的细胞结构。这种区别对于理解生命的多样性和塑造它的进化过程至关重要。 真核生物细胞的特点是其分隔的结构，这使得功能更加高效。它们含有膜结合的细胞器，如线粒体、内质网和高尔基体，每个细胞器都执行特定的功能，维持细胞的生存。例如，线粒体被称为细胞的动力源，因为它们生成三磷酸腺苷（ATP），这是细胞的能量货币。这种能量对于各种细胞活动至关重要，包括新陈代谢、成长和繁殖。 除了复杂的内部结构，真核生物在大小和形态上也更加多样化。它们包括从单细胞生物如酵母菌和阿米巴到多细胞生物如植物、动物和真菌的广泛生命形式。这种多样性是真核生物适应不同生态位的进化适应的结果。 真核生物细胞的进化被认为是通过一种称为内共生的过程发生的，其中一种生物生活在另一种生物内部，形成互惠关系。这一理论表明，现代线粒体和叶绿体的祖先曾经是自由生活的原核生物，后来被祖先的真核生物细胞吞噬。随着时间的推移，这些被吞噬的生物成为宿主细胞的重要组成部分，导致了我们今天所看到的复杂细胞结构。 理解原核生物和真核生物之间的区别不仅对生物科学重要，而且在医学、农业和生物技术等领域也具有实际意义。例如，许多抗生素针对原核生物细胞的特定特征，使其能够有效对抗细菌感染而不损害真核生物人类细胞。在农业中，可以对转基因真核生物作物进行工程改造，使其抵御害虫或耐受恶劣环境条件，从而增加粮食生产。 总之，将生物分类为原核生物和真核生物提供了研究生物学的基本框架。真核生物生命形式的复杂性和多样性突显了数百万年来发生的进化和适应的复杂过程。通过探索真核生物的特征和重要性，我们获得了对生命机制及我们星球上所有生物之间相互联系的宝贵见解。