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Related Concept Videos

Measuring Reaction Rates03:09

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Polarimetry finds application in chemical kinetics to measure the concentration and reaction kinetics of optically active substances during a chemical reaction. Optically active substances have the capability of rotating the plane of polarization of linearly polarized light passing through them—a feature called optical rotation. Optical activity is attributed to the molecular structure of substances. Normal monochromatic light is unpolarized and possesses oscillations of the electrical...
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Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
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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,...
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Enzyme kinetics studies the rates of biochemical reactions. Scientists monitor the reaction rates for a particular enzymatic reaction at various substrate concentrations. Additional trials with inhibitors or other molecules that affect the reaction rate may also be performed.
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Enzymes speed up reactions by lowering the activation energy of the reactants. The speed at which the enzyme turns reactants into products is called the rate of reaction. Several factors impact the rate of reaction, including the number of available reactants. Enzyme kinetics is the study of how an enzyme changes the rate of a reaction.
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The rate-determining step, or RDS, in a chemical reaction is the slowest step that determines the overall reaction rate. It is identified by using the observed rate law and typically involves approximation methods like the RDS approximation or the steady-state approximation.In the RDS approximation, also known as the rate-limiting-step or equilibrium approximation, the reaction mechanism consists of one or more reversible reactions near equilibrium, followed by a slower RDS, and then one or...
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Kinetics of Lagging-strand DNA Synthesis In Vitro by the Bacteriophage T7 Replication Proteins
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Rapid reaction kinetic techniques.

Christopher P Toseland1, Michael A Geeves

  • 1Chromosome Organisation and Dynamics, Max-Planck Institute of Biochemistry, Martinsried, 82152, Germany, toseland@biochem.mpg.de.

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|August 7, 2014
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Summary
This summary is machine-generated.

This chapter details instrumentation for relaxation and rapid mixing techniques, enabling real-time monitoring of biochemical reactions from microsecond timescales onwards. It covers essential aspects of sample excitation and signal detection for these rapid kinetic studies.

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Area of Science:

  • Biochemistry
  • Chemical Kinetics
  • Spectroscopy

Background:

  • Biochemical processes frequently occur on sub-second timescales.
  • Studying rapid reactions is crucial for understanding complex biological mechanisms.

Purpose of the Study:

  • To describe instrumentation for relaxation and rapid mixing techniques.
  • To discuss general topics of sample excitation and signal detection for real-time reaction monitoring.

Main Methods:

  • Relaxation methods for studying reactions.
  • Rapid mixing techniques for kinetic analysis.
  • Real-time monitoring of biochemical processes.

Main Results:

  • Instrumentation for microsecond timescale reaction monitoring is presented.
  • General principles of sample excitation are discussed.
  • Signal detection strategies for fast kinetic experiments are outlined.

Conclusions:

  • Relaxation and rapid mixing methods are essential for studying fast biochemical reactions.
  • Understanding instrumentation, excitation, and detection is key to real-time kinetic analysis.