813 results found

Search Results for: chemical

Chemical bond

Definition noun, plural: chemical bonds The attractive force that binds atoms, ions, or molecules in a chemical... Read More

Chemical

Definition noun, plural: chemicals (1) A substance made up of chemical elements or produced from a chemical process (2) A... Read More

Chemical Composition of the Body

In order to fully understand the mechanisms of human physiology, it is important to have an understanding of the chemical... Read More

Chemical reaction

Definition noun, plural: chemical reactions A process in which one or more substances (reactants) are chemically... Read More

Chemical energy

Definition noun Energy released from a substance, or absorbed in the formation of a chemical compound, during a chemical... Read More

Chemical synapse

Definition noun, plural: chemical synapses A specialized cell-to-cell junction where nerve impulse is transmitted in one... Read More

Protein Activity and Cellular Metabolism

Protein Binding Sites The ability of various molecules and ions to bind to specific sites on the protein surface forms the... Read More

Compound

Definition noun plural: compounds com·pound, ˈkɒmpaʊnd (general) A material made up of two or more parts or... Read More

Ionic bond

Definition noun plural: ionic bonds A type of chemical bond in which atoms, ions, or molecules are held together by... Read More

Covalent bond

Covalent Bond Definition What is a covalent bond? In chemistry and other fundamental science fields, a covalent bond is... Read More

Monosaccharide

Definition noun plural: monosaccharides mon·o·sac·cha·ride, ˈmɒ.nəʊˈsæk.ə.ɹaɪd (biochemistry) A simple... Read More

Reducing sugar

Reducing Sugar Definition What is reducing sugar? The type of sugar that acts as the reducing agent and can effectively... Read More

Hydrogen bond

Definition noun plural: hydrogen bonds A type of chemical bond that is formed when the slightly positive hydrogen atom of... Read More

Fermentation

Fermentation Definition What is fermentation? Fermentation is the breaking down of sugar molecules into simpler compounds... Read More

Chemical formula

Chemical formula (Science: chemistry) a represention of the elemental composition of a species, subscripts are used to... Read More

Element

Element Definition noun plural: elements el‧e‧ment, ˈel.ɪ.mənt (biochemistry) A substance that cannot be... Read More

Chlorophyll

Why are most plants green? Have you ever had the same question? Perhaps, you’ve been told that the plants are green... Read More

Chemical change

Chemical change a process in which one or more substances are changed into one or more different... Read More

Water

Water Definition (1) (biochemistry) A chemical substance, with chemical formula H2O, that is a clear, colorless, odorless,... Read More

Chemical equilibrium

Definition noun The state of chemical reaction where the concentrations of reactants and products have no net change with... Read More

Commodity chemical

Commodity chemical (Science: chemistry) chemicals such as ethanol that have low monetary value and are thus sold primarily... Read More

Generation of resting membrane potential

Stephen H. Wright Department of Physiology, College of Medicine, University of Arizona, Tucson, Arizona 85724... Read More

Biochemical Genetics

Definition noun A branch of genetics at a biochemical level and in which the relationship of genes and their control over... Read More

Biogeochemical cycle

Definition noun The cycling of chemical elements between the atmosphere, hydrosphere, lithosphere, and... Read More

Chemical prophylaxis

Chemical prophylaxis The administration of chemicals or drugs to members of a community to reduce the number of carriers of... Read More

Chemical taxonomy

Chemical taxonomy (Science: procedure) An approach to the classification of organisms based on the distribution of natural... Read More

Homeostatic Mechanisms and Cellular Communication

Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory... Read More

Oxygen

Oxygen Definition In biochemistry, oxygen is the colorless, odorless, gaseous element represented by the symbol "O", with... Read More

Oxidation

Oxidation Definition How do we define oxidation? There are several definitions of the oxidation process. Oxidation can be... Read More

Organic compound

Definition noun plural: organic compounds A compound that, in general, contains carbon covalently bound to other atoms,... Read More

Inorganic compound

Definition noun plural: inorganic compounds A chemical compound lacking both carbon-carbon (C-C) and carbon-hydrogen... Read More

Carbon

Carbon is one of the chemical elements found in nature. A chemical element refers to the pure substance of one type of atom.... Read More

Carbon dioxide

Carbon Dioxide Definition noun, car·bon di·ox·ide, /daɪˈɒksaɪd/ (biochemistry) An inorganic compound, with the... Read More

Metabolism

Metabolism Definition noun The process involving a set of chemical reactions that modifies a molecule into another to... Read More

Acid

Acid (Science: chemical, chemistry) a fundamental category of many compounds whose water-based solutions have a sour taste,... Read More

Catabolism

Catabolism Definition Catabolism is the branch of the metabolic process that breaks down complex, big molecules into... Read More

Facilitated diffusion

Facilitated diffusion is the transport of substances across a biological membrane from an area of higher concentration to an... Read More

Hydrogen

Hydrogen is one of the chemical elements found in nature. A chemical element refers to the pure substance of one type of... Read More

Neural Control Mechanisms

Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More

Phosphorylation

Phosphorylation Definition We can define phosphorylation as a biochemical process in which a phosphate molecule is added to... Read More