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SSME-518 Instructional Technology and Material Development Assignment2

ENZYMES. SSME-518 Instructional Technology and Material Development Assignment2 Presented by: Harika Özge Kızılsu. Outline. Introduction to enzymes How enzyme work Activation energy Factors effecting enzyme activity Temperature pH Enzyme concentration

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SSME-518 Instructional Technology and Material Development Assignment2

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  1. ENZYMES SSME-518Instructional Technology and Material Development Assignment2 Presented by: Harika Özge Kızılsu H.Özge Kızılsu

  2. Outline • Introduction to enzymes • How enzyme work • Activation energy • Factors effecting enzyme activity • Temperature • pH • Enzyme concentration • Substrate concentration H.Özge Kızılsu

  3. Introduction to enzymes • Enzymes are usually proteins • Enzymes are catalysts • In general, names end with suffix “ase” H.Özge Kızılsu

  4. Introduction to enzymes 3 x 1012 years is 500 times the age of the earth!!!! H.Özge Kızılsu

  5. Introduction to enzymes Enzymes: • increase the rate of a reaction • not consumed by the reaction • act repeatedly to increase the rate of reactions • are often very “specific” for the substrate Reactants also called “substrates” of enzyme H.Özge Kızılsu

  6. How enzyme work • Enzymes physically interact with their substrates • Substrates bind to the enzyme’s active site • Enzyme reaction path: H.Özge Kızılsu

  7. How enzyme work Substrate fits into an active site perfectly. (key) (lock) • Lock and Key Model click to see animation of model H.Özge Kızılsu

  8. How enzyme work • Activation energy is: the energy required to start a reaction. H.Özge Kızılsu

  9. Factors effecting enzyme activity • Temperature • pH • Enzyme concentration • Substrate concentration H.Özge Kızılsu

  10. C (optimum temperature) Temperature H.Özge Kızılsu

  11. pH H.Özge Kızılsu

  12. Substrate concentration constant Enzyme concentration H.Özge Kızılsu

  13. Substrate concentration click to learn more Enzyme concentration constant H.Özge Kızılsu

  14.  Thank YOU  H.Özge Kızılsu

  15. References • http://fig.cox.miami.edu/~cmallery/255/255enz/enzymology.htm • http://ntri.tamuk.edu/cell/enzyme2.html • http://www.animationfactory.com/animations/buildings/doors/6038e/ H.Özge Kızılsu

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