Glossary
- Page ID
- 398297
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| Words (or words that have the same definition) | The definition is case sensitive | (Optional) Image to display with the definition [Not displayed in Glossary, only in pop-up on pages] | (Optional) Caption for Image | (Optional) External or Internal Link | (Optional) Source for Definition |
|---|---|---|---|---|---|
| (Eg. "Genetic, Hereditary, DNA ...") | (Eg. "Relating to genes or heredity") |  | The infamous double helix | https://bio.libretexts.org/ | CC-BY-SA; Delmar Larsen |
| Word(s) | Definition | Image | Caption | Link | Source |
|---|---|---|---|---|---|
| Thermodynamic Variables | Quantities that define the state of a system (e.g., pressure, volume, temperature, and chemical composition). | ||||
| Equations of State | Mathematical relationships that describe the state of a system, such as the ideal gas law. | ||||
| First Law of Thermodynamics | Law of energy conservation, stating that energy cannot be created or destroyed, only transformed. | ||||
| Thermochemistry | Study of heat changes that occur during chemical reactions. | ||||
| Second Law of Thermodynamics | States that the total entropy of an isolated system always increases over time. | ||||
| Boltzmann Distribution | Describes the distribution of particles among available energy states in a system. | ||||
| Statistical Definition of Entropy | Entropy is related to the number of possible microstates in a system, quantified by the Boltzmann constant. | ||||
| Gibbs Free Energy | A thermodynamic potential used to predict the spontaneity of a process at constant temperature and pressure. | ||||
| Helmholtz Free Energy | A thermodynamic potential used to predict spontaneity at constant temperature and volume. | ||||
| Equilibria in Biochemical Systems | Describes the balance between forward and reverse reactions in biochemical processes. | ||||
| Kinetic Rate Laws | Mathematical expressions that describe the rate of a chemical reaction as a function of reactant concentrations. | ||||
| Reaction Mechanisms | A step-by-step sequence of elementary reactions that leads to the overall chemical transformation. | ||||
| Transition State Theory | Theory that explains how chemical reactions occur by describing the transition between reactants and products via a high-energy state. | ||||
| Potential Energy Surface | A multidimensional surface that describes the energy of a system in relation to the positions of the atoms. | ||||
| Bonding Interactions | Forces that hold atoms together within molecules (e.g., covalent, ionic, or hydrogen bonds). | ||||
| Intermolecular Forces | Forces that act between molecules, including van der Waals forces, dipole-dipole interactions, and hydrogen bonds. | ||||
| Newtonian Mechanics | A branch of physics that describes the motion of objects based on forces acting on them. | ||||
| Molecular Dynamics Simulations | Computational simulations that model the behavior of atoms and molecules over time. | ||||
| Analysis of Molecular Dynamics Trajectories | The process of interpreting the results from molecular dynamics simulations to understand molecular behavior. | ||||
| Advanced Topics in Molecular Dynamics | In-depth concepts like enhanced sampling techniques, free energy calculations, and multiscale modeling. | ||||
| Spectroscopy | The study of the interaction between matter and electromagnetic radiation. | ||||
| Basic Elements of Spectroscopy | Components such as light sources, detectors, and sample cells used in spectroscopic analysis. | ||||
| Two Masses on a Spring Model | A simplified model used to describe molecular vibrations, particularly relevant in infrared (IR) spectroscopy. | ||||
| Infrared (IR) Spectroscopy | A technique that measures the absorption of infrared light by molecules, helping identify functional groups. | ||||
| Quantum Mechanics and Quantum Oscillator Model | Describes molecular vibrations and energy levels as quantized. | ||||
| Fluorescence | The emission of light by a molecule that has absorbed light or other electromagnetic radiation. | ||||
| Phosphorescence | Emission of light from a molecule following absorption, where the emission persists longer than fluorescence. | ||||
| Nuclear Spin | The intrinsic angular momentum of nuclei that can interact with magnetic fields. | ||||
| Magnetic Field | A field that affects the behavior of magnetic dipoles like nuclear spins, fundamental to NMR spectroscopy. | ||||
| Excite-Record Experiment | The process of exciting nuclei with a magnetic pulse and recording their response to generate an NMR spectrum. | ||||
| Chemical Shift | The displacement of a resonance frequency relative to a standard, measured in parts per million (ppm). | ||||
| Fourier Transformation, FT | A mathematical method to convert data from the time domain (FID) into the frequency domain (NMR spectrum). | ||||
| Spectral Sensitivity and Resolution | Factors that determine the clarity and detail of an NMR spectrum, influenced by the sample, equipment, and experimental conditions. | ||||
| 2D NMR Spectroscopy | A technique that provides information on atomic interactions in a protein, allowing higher spectral resolution and better peak assignment. | ||||
| Heteronuclear 3D NMR | A three-dimensional NMR technique that involves multiple types of nuclei, enabling resonance assignments and structural analysis of proteins. | ||||
| Protein Dynamics | The study of how proteins change shape and function in response to their environment, often analyzed through NMR. | ||||
| Conformational States | Different shapes that a protein can adopt, which can influence its biological activity. | ||||
| NMR for Protein Function | Using NMR spectroscopy to understand how protein structure relates to its biological function and dynamics. |