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SSME-518 Instructional Technology and Material Development Assignment2 PowerPoint PPT Presentation


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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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Ssme 518 instructional technology and material development assignment2

ENZYMES

SSME-518Instructional Technology and Material Development

Assignment2

Presented by: Harika Özge Kızılsu

H.Özge Kızılsu


Outline

Outline

  • Introduction to enzymes

  • How enzyme work

    • Activation energy

  • Factors effecting enzyme activity

    • Temperature

    • pH

    • Enzyme concentration

    • Substrate concentration

H.Özge Kızılsu


Introduction to enzymes

Introduction to enzymes

  • Enzymes are usually proteins

  • Enzymes are catalysts

    • In general, names end with suffix “ase”

H.Özge Kızılsu


Introduction to enzymes1

Introduction to enzymes

3 x 1012 years is 500 times the age of the earth!!!!

H.Özge Kızılsu


Introduction to enzymes2

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


How enzyme work

How enzyme work

  • Enzymes physically interact with their substrates

  • Substrates bind to the enzyme’s active site

  • Enzyme reaction path:

H.Özge Kızılsu


How enzyme work1

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


How enzyme work2

How enzyme work

  • Activation energy is:

    the energy required to start a reaction.

H.Özge Kızılsu


Factors effecting enzyme activity

Factors effecting enzyme activity

  • Temperature

  • pH

  • Enzyme concentration

  • Substrate concentration

H.Özge Kızılsu


Temperature

  • C (optimum temperature)

Temperature

H.Özge Kızılsu


Ssme 518 instructional technology and material development assignment2

pH

H.Özge Kızılsu


Enzyme concentration

Substrate concentration constant

Enzyme concentration

H.Özge Kızılsu


Substrate concentration

Substrate concentration

click to learn more

Enzyme concentration constant

H.Özge Kızılsu


Ssme 518 instructional technology and material development assignment2

 Thank YOU 

H.Özge Kızılsu


References

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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