molecules

简明释义

英[ˈmɒlɪkjuːlz]美[ˈmɑlɪkjulz]

n. [化学]分子，微粒；[化学]摩尔（molecule 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Every substance, no matter what it is, is composed of very small particles called molecules.

各种物质，不论它是什么，都是由一些称为分子的很小的粒子构成的。

2.An increase in the amount of carbon dioxide means that there are more molecules of carbon dioxide to absorb infrared radiation.

二氧化碳含量的增加意味着有更多的二氧化碳分子吸收红外线辐射。

3.All of these alternatives are carbon-based fuels whose molecules are smaller and simpler than those of gasoline.

所有这些替代品都是碳基燃料，其分子比汽油分子更小、更简单。

4.Now investigators think they know at least some of the molecules that act as morphogenetic determinants in early development.

现在研究人员认为他们至少知道了一些在早期发育中对形态起决定作用的分子。

5.As we eat, specialised receptors in the back of the nose detect the air molecules in our meals.

当我们吃东西的时候，鼻子后部的特殊感受器会检测我们食物中的空气分子。

6.Before letting its leaves go, the tree dismantles their chlorophyll molecules and ships their valuable nitrogen back into the twigs.

在树叶凋落之前，树会分解叶绿素分子，把有用的氮运回树枝中。

7.The molecules join together to form long strings.

分子连接在一起形成长串。

8.Proteins are made up of long chains of amino acid molecules.

蛋白质由长链氨基酸分子组成。

9.Chemical reactions involve the breaking and forming of molecules.

化学反应涉及分子的断裂和形成。

10.In the lab, we studied how different molecules interact with each other.

在实验室，我们研究了不同的分子如何相互作用。

11.The scent of flowers comes from volatile organic molecules released into the air.

花香来自释放到空气中的挥发性有机分子。

12.Water is made up of two hydrogen atoms and one oxygen atom, forming H2O molecules.

水由两个氢原子和一个氧原子组成，形成H2O分子。

作文

Molecules are the fundamental building blocks of matter. They consist of two or more atoms that are bonded together, forming a distinct chemical structure. Understanding molecules is essential for comprehending the world around us, as they play a crucial role in various scientific fields, including chemistry, biology, and physics. In this essay, I will explore the significance of molecules (分子) in our daily lives and their impact on different scientific disciplines.Firstly, let’s consider the role of molecules (分子) in chemistry. Chemistry is the study of substances and their interactions, and at the heart of this science are molecules (分子). Each molecule (分子) has unique properties that determine how it interacts with other molecules (分子). For example, water, which is made up of two hydrogen atoms and one oxygen atom, exhibits properties such as cohesion and adhesion, which are vital for life. The way molecules (分子) interact with each other can lead to chemical reactions, producing new substances and energy changes. This is why understanding molecules (分子) is so important for chemists, as it allows them to predict how different substances will behave under various conditions.In biology, molecules (分子) are equally significant. Living organisms are composed of complex molecules (分子) such as proteins, nucleic acids, carbohydrates, and lipids. These molecules (分子) are involved in numerous biological processes, including metabolism, cell signaling, and genetic information storage. For instance, DNA, which is a type of nucleic acid, consists of long chains of molecules (分子) that store genetic information, guiding the development and functioning of all living organisms. Understanding the structure and function of these biological molecules (分子) is essential for advancements in medicine, genetics, and biotechnology.Furthermore, in physics, molecules (分子) also play a vital role in understanding matter and energy. The behavior of molecules (分子) under different temperature and pressure conditions helps scientists explain phenomena such as gas laws and thermodynamics. For example, as temperature increases, the kinetic energy of molecules (分子) also increases, leading to changes in state from solid to liquid to gas. This understanding is crucial for various applications, from engineering to environmental science.In conclusion, molecules (分子) are fundamental components of matter that significantly influence the natural world and various scientific disciplines. Their unique properties and interactions are essential for understanding chemical reactions, biological processes, and physical phenomena. As we continue to explore the intricacies of molecules (分子), we unlock new knowledge that enhances our understanding of life and the universe. Therefore, a deeper comprehension of molecules (分子) is not only beneficial for scientists but is also vital for anyone interested in the workings of the world around us.

分子是物质的基本构建块。它们由两个或多个原子结合在一起，形成独特的化学结构。理解分子对于理解我们周围的世界至关重要，因为它们在化学、生物学和物理学等多个科学领域中发挥着关键作用。在这篇文章中，我将探讨分子在我们日常生活中的重要性及其对不同科学学科的影响。首先，让我们考虑分子在化学中的作用。化学是研究物质及其相互作用的科学，而在这门科学的核心是分子。每个分子都有独特的性质，决定了它如何与其他分子相互作用。例如，水由两个氢原子和一个氧原子组成，表现出如内聚力和附着力等生命所必需的特性。分子之间的相互作用可以导致化学反应，产生新物质和能量变化。这就是为什么理解分子对化学家如此重要，因为这使他们能够预测不同物质在各种条件下的行为。在生物学中，分子同样重要。生物体由复杂的分子组成，如蛋白质、核酸、碳水化合物和脂质。这些分子参与许多生物过程，包括代谢、细胞信号传导和遗传信息存储。例如，DNA是一种核酸，由长链分子组成，储存遗传信息，指导所有生物体的发育和功能。理解这些生物分子的结构和功能对于医学、遗传学和生物技术的进步至关重要。此外，在物理学中，分子也在理解物质和能量方面发挥着重要作用。分子在不同温度和压力条件下的行为帮助科学家解释气体定律和热力学现象。例如，随着温度的升高，分子的动能也增加，导致状态从固态转变为液态再到气态。这种理解对从工程到环境科学的各种应用至关重要。总之，分子是物质的基本组成部分，对自然界和各个科学学科有着重要影响。它们独特的性质和相互作用对于理解化学反应、生物过程和物理现象至关重要。随着我们继续探索分子的复杂性，我们解锁的新知识将增强我们对生命和宇宙的理解。因此，深入理解分子不仅对科学家有益，而且对任何对周围世界的运作感兴趣的人来说都是至关重要的。