html5-img
1 / 14

Enzymes

Enzymes. Textbook Pages 69-74. Enzymes are important. Digestion, Immune function, cell division, etc. Basically everything produced or changed in our bodies When enzymes go wrong Lactose intolerance Diabetes *thyroidism Death. What is an enzyme?. Catalyst

toni
Download Presentation

Enzymes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Enzymes Textbook Pages 69-74

  2. Enzymes are important • Digestion, Immune function, cell division, etc. • Basically everything produced or changed in our bodies • When enzymes go wrong • Lactose intolerance • Diabetes • *thyroidism • Death

  3. What is an enzyme? • Catalyst • Substance that speeds up a specific chemical reaction without being consumed in it • In other words, reduces the activation energy of a specific reaction

  4. Ok, but how do they work? • Work on a particular substrate • Bind to the substrate to form the enzyme-substrate complex • Then breaks apart into: 1) Products of the reaction 2) Unchanged enzyme

  5. http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_enzymes_work.htmlhttp://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__how_enzymes_work.html

  6. Models of enzyme function • Lock and key model

  7. Models of enzyme function • Induced fit model • http://www.sumanasinc.com/webcontent/animations/content/enzymes/enzymes.html

  8. Factors that influence enzyme activity • Temperature • 37 °C for humans mostly • Denaturation • Concentration of enzyme • Concentration of substrate • pH • Stomach vs. Intestines

  9. Enzyme Cofactors of Coenzymes • Molecules or elements that bind to enzymes to allow them to function • Ex: Zinc, B vitamins

  10. Enzyme inhibition • Competitive inhibitors

  11. Enzyme inhibition • Noncompetitive inhibition

  12. Allosteric regulation

  13. Negative feedback inhibition

More Related