Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Functions of Life01:23

Functions of Life

16.9K
Human life is characterized by a variety of functions that are essential for survival and well-being. These functions include metabolism, movement, development, growth and reproduction.
Metabolism
The basic function of an organism is to consume energy and molecules in foods, convert some of it into fuel for movement, sustain body functions, and build and maintain body structures. There are two types of reactions that accomplish this: anabolism and catabolism.
Anabolism is the process whereby...
16.9K
Characteristics of Life01:23

Characteristics of Life

225.2K
Biology is a natural science that studies life and living organisms, including their structure, function, development, interactions, evolution, distribution, and taxonomy. The field's scope is extensive and divided into several specialized disciplines, such as anatomy, physiology, ethology, genetics, and many more. All living things share a few key traits, including cellular organization, heritable genetic material and the ability to adapt/evolve, metabolism to regulate energy needs, the...
225.2K
Mechanical Protein Functions01:58

Mechanical Protein Functions

5.0K
Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force. 
5.0K
Multi-Step Reactions02:31

Multi-Step Reactions

7.4K
Chemical reactions often occur in a stepwise fashion involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs. Each of the steps in a reaction mechanism is called an elementary reaction. These...
7.4K
Regulation of Metabolism01:19

Regulation of Metabolism

9.5K
Cellular needs and conditions vary from cell to cell and change within individual cells over time. For example, the required enzymes and energetic demands of stomach cells are different from those of fat storage cells, skin cells, blood cells, and nerve cells. Furthermore, a digestive cell works much harder to process and break down nutrients during the time that closely follows a meal compared with many hours after a meal. As these cellular demands and conditions vary, so do the amounts and...
9.5K
Enzymes02:34

Enzymes

81.8K
Inside living organisms, enzymes act as catalysts for many biochemical reactions involved in cellular metabolism. The role of enzymes is to reduce the activation energies of biochemical reactions by forming complexes with its substrates. The lowering of activation energies favor an increase in the rates of biochemical reactions.
Enzyme deficiencies can often translate into life-threatening diseases. For example, a genetic abnormality resulting in the deficiency of the enzyme G6PD...
81.8K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

The Evolution of Large Organism Size: Disparate Physiologies Share a Foundation at the Smallest Physical Scales.

Life (Basel, Switzerland)·2025
Same author

Elevational shifts in reproductive ecology indicate the climate response of a model chasmophyte, Rainer's bellflower (Campanula raineri).

Annals of botany·2024
Same author

Climatic and evolutionary contexts are required to infer plant life history strategies from functional traits at a global scale.

Ecology letters·2021
Same author

TRY plant trait database - enhanced coverage and open access.

Global change biology·2020
Same author

Soil Application of Effective Microorganisms (EM) Maintains Leaf Photosynthetic Efficiency, Increases Seed Yield and Quality Traits of Bean (<i>Phaseolus vulgaris</i> L.) Plants Grown on Different Substrates.

International journal of molecular sciences·2019
Same author

Increasing the germination percentage of a declining native orchid (Himantoglossum adriaticum) by pollen transfer and outbreeding between populations.

Plant biology (Stuttgart, Germany)·2019

相关实验视频

Updated: Jul 18, 2025

Mechanostimulation of Multicellular Organisms Through a High-Throughput Microfluidic Compression System
09:56

Mechanostimulation of Multicellular Organisms Through a High-Throughput Microfluidic Compression System

Published on: December 23, 2022

1.7K

生命的机制 生命的机制

Simon Pierce1

  • 1Department of Agricultural and Environmental Sciences (DiSAA), University of Milan, Via Celoria 2, 20133 Milano, Italy.

Life (Basel, Switzerland)
|August 26, 2023
PubMed
概括
此摘要是机器生成的。

生命被定义为一种自我调节的过程,在这个过程中,物质利用由热力学梯度驱动的循环变化的形状变化来执行工作并减少. 这个原则适用于生物分子和潜在的其他生物圈.

关键词:
布朗尼发动机的发动机死亡死亡死亡死亡死亡死亡生命的定义生活的定义.费因曼斯莫洛霍夫斯基拉切特 拉切特热发动机的热发动机是一种热发动机.生命的生命理论.

更多相关视频

Author Spotlight: Automated Lifespan Monitoring &#8211; Discovering Aging Dynamics with the Lifespan Machine
08:53

Author Spotlight: Automated Lifespan Monitoring – Discovering Aging Dynamics with the Lifespan Machine

Published on: January 26, 2024

1.1K
A Multilayer Microfluidic Platform for the Conduction of Prolonged Cell-Free Gene Expression
11:23

A Multilayer Microfluidic Platform for the Conduction of Prolonged Cell-Free Gene Expression

Published on: October 6, 2019

10.3K

相关实验视频

Last Updated: Jul 18, 2025

Mechanostimulation of Multicellular Organisms Through a High-Throughput Microfluidic Compression System
09:56

Mechanostimulation of Multicellular Organisms Through a High-Throughput Microfluidic Compression System

Published on: December 23, 2022

1.7K
Author Spotlight: Automated Lifespan Monitoring &#8211; Discovering Aging Dynamics with the Lifespan Machine
08:53

Author Spotlight: Automated Lifespan Monitoring – Discovering Aging Dynamics with the Lifespan Machine

Published on: January 26, 2024

1.1K
A Multilayer Microfluidic Platform for the Conduction of Prolonged Cell-Free Gene Expression
11:23

A Multilayer Microfluidic Platform for the Conduction of Prolonged Cell-Free Gene Expression

Published on: October 6, 2019

10.3K

科学领域:

  • 热力学是一种热力学.
  • 生物物理学的生物物理.
  • 生命的起源研究 生命的起源研究

背景情况:

  • 根据新出现的特性来定义生命是具有挑战性的.
  • 现有的定义并不能完全捕捉到生物系统的内在功能.

研究的目的:

  • 提出一种机械主义的生命定义.
  • 为了确定一个基本的生物过程的普遍原则.

主要方法:

  • 生物分子机制的分析,包括酶和 ribozymes.
  • 检查由热力学梯度驱动的形状状态变化.
  • 生命作为热力学过程的概念化.

主要成果:

  • 生物分子作为"热引擎"发挥作用,将热力学不平衡转化为定向运动.
  • 生命的特点是单平面形状变化的自我调节网络.
  • 这个过程通过执行工作在局部减少.

结论:

  • 生命是一个自我调节的过程,将热力学不平衡转化为定向运动.
  • 生物是利用热力学梯度的自主网络.
  • 这些原则是普遍的,适用于外星生命.