2 7 factors affecting enzyme action n.
Skip this Video
Loading SlideShow in 5 Seconds..
2.7 Factors affecting enzyme action PowerPoint Presentation
Download Presentation
2.7 Factors affecting enzyme action

play fullscreen
1 / 8
Download Presentation

2.7 Factors affecting enzyme action - PowerPoint PPT Presentation

mateo
115 Views
Download Presentation

2.7 Factors affecting enzyme action

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. 2.7 Factors affecting enzyme action

  2. Learning Objectives • Learn how the rate of an enzyme controlled reaction is measured. • Learn how temperature affects the rate of an enzyme controlled reaction. • Learn how pH affects the rate of an enzyme controlled reaction. • Learn how substrate concentration affects the rate of reaction.

  3. How to measure the progress of enzyme-catalysed reactions... • Generally, one of two ‘outcomes’ are measured over time: - the formation of the products of the reaction. - the disappearance of the substrate.

  4. Draw and explain the following graphs... Mass of starch Volume of oxygen produced Time Time Enzyme-catalysed reaction in which oxygen is formed due to the action of catalase on hydrogen peroxide. Enzyme-catalysed reaction in which starch disappears due to the reaction of amylase.

  5. The Effect of Temperature on the Rate of an Enzyme-Controlled Reaction

  6. The Effect Of pH

  7. The Effect Of pH on the Rate of an Enzyme-Controlled Reaction

  8. The Effect Of Changing Substrate Concentration The effect of changing the amount of substrate on the rate of an enzyme-controlled reaction. As the amount of substrate increases from 0 to B, the rate of reaction increases. As the amount of substrate increases from B to C, the rate of reaction does not increase any further.