Related Experiment Video
Updated: Sep 29, 2025
13:05
Reliable Mechanochemistry: Protocols for Reproducible Outcomes of Neat and Liquid Assisted Ball-mill Grinding Experiments
Published on: January 23, 2018
10.8K
Mechanisms of macromolecular reactions
1, Erie, CO, USA. rossstein2011@gmail.com.
History and Philosophy of the Life Sciences
|March 18, 2022
Summary
This study defines biological mechanisms by focusing on macromolecular reactions. It proposes that reaction mechanisms are best described as a series of intermediates, emphasizing the interplay between chemistry and protein dynamics.
Area of Science:
- Philosophy of Biology
- Biochemistry
- Structural Biology
Background:
- Philosophers of biology increasingly analyze mechanisms driving biological phenomena.
- Previous analyses focused on cellular/sub-cellular mechanisms (e.g., synapse firing, protein synthesis).
- Mechanisms of underlying macromolecular reactions (e.g., protein folding, enzyme catalysis) remain underexplored.
Purpose of the Study:
- To develop a philosophical account of mechanism specifically for macromolecular reactions.
- To bridge the gap between philosophical analyses of mechanisms and biochemical processes.
- To propose a novel framework for understanding biological mechanisms at the molecular level.
Main Methods:
- Reviewing the understanding of mechanisms in enzymology.
- Applying mechanistic concepts from enzymology to broader macromolecular reactions.
- Developing an argument for a process ontology to describe reaction mechanisms.
Main Results:
- A macromolecular reaction mechanism is best described as a progression of reaction intermediates.
- The transition between intermediates involves energetic coupling between chemistry and protein dynamics.
- This description necessitates a grounding in process ontology.
Conclusions:
- The philosophical analysis of biological mechanisms should extend to macromolecular reactions.
- Understanding macromolecular reactions requires considering the dynamic interplay of chemical and physical processes.
- A process ontology provides a suitable framework for describing these complex molecular mechanisms.
Related Concept Videos
01:13Introduction to Mechanisms of Enzyme Catalysis
9.1K
For many years, scientists thought that enzyme-substrate binding took place in a simple "lock-and-key" fashion. This model stated that the enzyme and substrate fit together perfectly in one instantaneous step. However, current research supports a more refined view scientists call induced fit. The induced-fit model expands upon the lock-and-key model by describing a more dynamic interaction between enzyme and substrate. As the enzyme and substrate come together, their interaction causes...
9.1K
02:31Multi-Step Reactions
7.5K
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...
7.5K
01:28ATP and Macromolecule Synthesis
6.2K
Biological macromolecules are organic compounds, predominantly composed of carbon atoms. The carbon atoms are covalently bonded with hydrogen, oxygen, nitrogen, and other minor elements. There are four major biological macromolecule classes: carbohydrates, lipids, proteins, and nucleic acids.
Most macromolecules are composed of single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers.
Conversion of...
Most macromolecules are composed of single subunits, or building blocks, called monomers. The monomers combine with each other using covalent bonds to form larger molecules known as polymers.
Conversion of...
6.2K
03:06Reaction Mechanisms
27.0K
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.
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
27.0K
02:24Predicting Reaction Outcomes
8.7K
Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...
8.7K
01:11Radical Reactivity: Overview
2.2K
Radicals, the highly reactive species, gain stability by undergoing three different reactions. The first reaction involves a radical-radical coupling, in which a radical combines with another radical, forming a spin‐paired molecule. The second reaction is between a radical and a spin‐paired molecule, generating a new radical and a new spin‐paired molecule. The third reaction is radical decomposition in a unimolecular reaction, forming a new radical and a spin‐paired...
2.2K