thylakoids

简明释义

英[ˈθaɪləʊkɔɪdz]美[ˈθaɪləˌkɔɪdz]

n. 类囊体（thylakoid 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Inside the chloroplast is a fluid called stroma, which contains a series of flattened stacks of thylakoids.

叶绿体里面是一种叫基质的液体，它含有一系列扁平的成堆的类囊体。

2.At yellow green fruit stage the thylakoid system was disintegrated and replaced by few non chlorophyllous single thylakoids, with accumulation of large osmiophilic plastoglobules.

在黄绿色果实时期叶绿体类囊体系统解体，代之以少数非叶绿素的单个类囊体和积累大的嗜锇的质体小球。

3.These stacks of thylakoids are called grana .

这些成堆的类囊体称为质体基粒。

4.Electron microscopic photographs show well developed thylakoids with phycobilisomes attached and surrounding the nucleoplasm, polygonal body and.

电子显微镜相片显示，藻细胞中类囊体十分发达，它连接着藻胆体，并包围着核质、多角体和蓝藻颗粒体。

5.These stacks of thylakoids are called grana.

这些成堆的类囊体称为质体基粒。

6.Under salt stress, thylakoids became swollen, stroma lamella and grana lamella of chloroplast were distorted;

盐胁迫后，叶绿体基粒、基质片层扭曲，类囊体肿胀；

7.At yellow green fruit stage the thylakoid system was disintegrated and replaced by few non chlorophyllous single thylakoids, with accumulation of large osmiophilic plastoglobules.

在黄绿色果实时期叶绿体类囊体系统解体，代之以少数非叶绿素的单个类囊体和积累大的嗜锇的质体小球。

8.The space inside the thylakoids is called the lumen.

在类囊体内部的空间称为腔隙。

9.The light-dependent reactions of photosynthesis occur in the thylakoids.

光合作用的光依赖反应发生在类囊体中。

10.Each stack of thylakoids is known as a granum.

每一堆类囊体被称为一个颗粒。

11.The arrangement of thylakoids increases the surface area for light absorption.

类囊体的排列增加了光吸收的表面积。

12.In the chloroplasts of plant cells, the membranes that contain chlorophyll are called thylakoids.

在植物细胞的叶绿体中，含有叶绿素的膜称为类囊体。

作文

In the intricate world of plant biology, one cannot overlook the significance of thylakoids, which are essential components of chloroplasts. These disc-shaped membranes play a crucial role in the process of photosynthesis, the method by which plants convert light energy into chemical energy. Understanding thylakoids is fundamental for anyone interested in botany or environmental science, as they are central to the life-sustaining process that fuels almost all ecosystems on Earth.The structure of thylakoids is fascinating. They are organized into stacks known as grana, which resemble coins piled upon each other. Each stack is interconnected by stroma thylakoids, forming a complex network that maximizes the surface area available for light absorption. This structural arrangement is vital because it allows chlorophyll, the green pigment found in plants, to capture sunlight efficiently. Without thylakoids, plants would struggle to perform photosynthesis effectively, leading to a decline in oxygen production and food supply.Photosynthesis occurs in two main stages: the light-dependent reactions and the light-independent reactions, also known as the Calvin cycle. The light-dependent reactions take place within the thylakoids, where sunlight is absorbed and converted into energy-rich molecules, ATP and NADPH. During this process, water molecules are split, releasing oxygen as a byproduct. This transformation of light energy into chemical energy is nothing short of miraculous, and it is all made possible by the presence of thylakoids.In contrast, the Calvin cycle occurs in the stroma of the chloroplasts, where the ATP and NADPH produced in the light-dependent reactions are used to convert carbon dioxide into glucose. This sugar is not only a source of energy for the plant itself but also serves as the foundation for the food chain, supporting a vast array of life forms. Thus, thylakoids are indirectly responsible for sustaining life on Earth by enabling plants to produce food and oxygen.Moreover, the study of thylakoids has implications beyond basic biology. Researchers are exploring ways to harness the mechanisms of photosynthesis to develop sustainable energy solutions. By mimicking the processes that occur in thylakoids, scientists aim to create artificial systems that can convert sunlight into energy, potentially reducing our reliance on fossil fuels. This endeavor highlights the importance of understanding plant structures and their functions in addressing global challenges such as climate change and energy scarcity.In conclusion, thylakoids are more than just cellular structures; they are vital players in the grand scheme of life on Earth. Their role in photosynthesis cannot be overstated, as they facilitate the conversion of light energy into chemical energy, supporting not only plant life but also the entire ecosystem. As we continue to study and understand these remarkable components, we may unlock new pathways to sustainability and energy efficiency, showcasing the profound interconnectedness of nature and science. Therefore, appreciating the function and importance of thylakoids is essential for anyone looking to comprehend the complexities of life and the environment around us.

在植物生物学的复杂世界中，人们无法忽视类囊体的重要性，它们是叶绿体的基本组成部分。这些盘状膜在光合作用过程中发挥着至关重要的作用，光合作用是植物将光能转化为化学能的方法。理解类囊体对于任何对植物学或环境科学感兴趣的人来说都是基础，因为它们是维持几乎所有生态系统生命的过程的核心。类囊体的结构令人着迷。它们组织成堆叠，称为基粒，看起来像一叠叠的硬币。每个堆叠通过基质类囊体相互连接，形成一个复杂的网络，最大化可用于光吸收的表面积。这种结构排列至关重要，因为它允许植物中的绿色色素叶绿素有效地捕获阳光。如果没有类囊体，植物将在有效进行光合作用方面面临困难，从而导致氧气生产和食物供应的下降。光合作用分为两个主要阶段：光依赖反应和光独立反应，也称为卡尔文循环。光依赖反应发生在类囊体内，在那里阳光被吸收并转化为富含能量的分子ATP和NADPH。在此过程中，水分子被分解，释放出氧气作为副产品。这种将光能转化为化学能的转变是不可思议的，而这一切都得益于类囊体的存在。相比之下，卡尔文循环发生在叶绿体的基质中，在这里，光依赖反应中产生的ATP和NADPH被用来将二氧化碳转化为葡萄糖。这种糖不仅是植物自身的能量来源，而且还作为食物链的基础，支持着各种生命形式。因此，类囊体间接地负责维持地球上的生命，因为它使植物能够生产食物和氧气。此外，研究类囊体的研究超越了基础生物学。研究人员正在探索利用光合作用机制开发可持续能源解决方案的方法。通过模仿发生在类囊体中的过程，科学家们旨在创建能够将阳光转化为能量的人工系统，可能减少我们对化石燃料的依赖。这一努力强调了理解植物结构及其功能在应对全球挑战（如气候变化和能源匮乏）中的重要性。总之，类囊体不仅仅是细胞结构；它们是地球生命宏伟计划中的重要参与者。它们在光合作用中的角色不可低估，因为它们促进了光能向化学能的转化，支持的不仅是植物生命，还有整个生态系统。随着我们继续研究和理解这些显著的组成部分，我们可能会开启通往可持续性和能源效率的新途径，展示自然与科学的深刻相互联系。因此，欣赏类囊体的功能和重要性对于任何希望理解周围生活和环境复杂性的人来说都是必不可少的。