Presentation on theme: "Enzymes Functions and Control. Enzyme Terms Substrate - the material and enzyme works on. Enzyme names: Ex. Sucrase - ase name of an enzyme - ase."— Presentation transcript:
Enzyme Terms Substrate - the material and enzyme works on. Enzyme names: Ex. Sucrase - ase name of an enzyme - ase name of an enzyme 1st part tells what the substrate is. (Sucrose) 1st part tells what the substrate is. (Sucrose)
Enzyme Name Some older known enzymes don't fit this naming pattern. Examples: pepsin, trypsin BUT…enzymes are proteins (-in = protein)
Active Site The area of an enzyme that binds to the substrate. Structure is designed to fit the molecular shape of the substrate. Therefore, each enzyme is substrate specific.
Allosteric Regulation Cell’s can’t have enzymes turned on all the time The control of an enzyme complex by the binding of a regulatory molecule. Regulatory molecule may stimulate or inhibit the enzyme complex by causing it to change shape. Works like a reversible non-competitive inhibitor
Feedback Inhibition The end product of a metabolic pathway affects the function of an enzyme A metabolic pathway is switched off by the inhibitory binding of its end product to an enzyme that acts early in the pathway Usually allosteric regulation