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SLSBio12Enzyme SM
SLS Bio12 Enzyme SM
| Term | Definition |
|---|---|
| Activation Energy | the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction. |
| Biochemical Reaction | The transformation of one molecule to a different molecule inside a cell. Biochemical reactions are mediated by enzymes, which are biological catalysts that can alter the rate and specificity of chemical reactions inside cells. |
| Coenzyme | A small molecule (not a protein but sometimes a vitamin) essential for the activity of some enzymes.A cofactor molecule that helps an enzyme catalyse a particular reaction by binding with it. |
| Competitive Inhibitor | inhibitor that occupies the active site of an enzyme or the binding Site of a receptor and prevents the normal substrate from binding. |
| Enzyme | molecules that catalyze (increase the rates of) chemical reactions. |
| Enzyme Activity | the catalytic effect exerted by an enzyme, expressed as units per milligram of enzyme or as molecules of substrate transformed per minute per molecule of enzyme |
| Enzyme Concentration | How much of the enzyme is present in any given solution. |
| Heavy Metal | A metal of relatively high density. |
| Induced Fit Model | A model for enzyme-substrate interaction to describe that only the proper substrate is capable of inducing the proper alignment of the active site that will enable the enzyme to perform its catalytic function |
| Metabolism | the sum of the physical and chemical processes in an organism by which its material substance is produced, maintained, and destroyed, and by which energy is made available. |
| Non-Competitive Inhibitor | Enzyme inhibition in which the inhibiting compound does not compete with the natural substrate for the active site on the enzyme but inhibits reaction by combining with the enzyme-substrate complex after the complex is formed. |
| pH | it is a measure to determine the acidity or alkalinity of a solution or a substance. |
| Substrate | a molecule upon which an enzyme acts. Enzymes catalyze chemical reactions involving the substrate(s). In the case of a single substrate, the substrate bonds with the enzyme active site, and an enzyme-substrate complex is formed. |
| Substrate Concentration | the number of substrate molecules in a solution |
| Thyroid | A butterfly-shaped endocrine gland in the neck that is found on both sides of the trachea (windpipe). It secretes the hormone thyroxine which controls the rate of metabolism. |
| Thyroxin | Hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells |
| Vitamins | An essential low molecular weight organic compound required in trace amounts for normal growth and metabolic processes. They usually serve as components of coenzyme systems. |