Download presentation
Presentation is loading. Please wait.
Published byCynthia Day Modified over 8 years ago
2
Enzymes Introductory Microbiology
3
The Nature of Energy
4
The Laws of Thermodynamics
5
First Law: Conservation of Energy
6
Second Law: Increasing Entropy
7
Energy Diagrams
8
Collision Theory – Chemistry is in the Impact
9
Reaction Diagrams – Visualizing the Chemistry
10
Gibb’s Free Energy Progression of Reaction A B C D E F Exergonic Reaction
11
What would an Endergonic Reaction look like?
12
Enzymes and Catalysts
13
How can you increase the rate of a reaction?
14
Increase the Concentration
15
Increase the Temperature
16
Catalysts can alter the speed of a reaction.
17
Catalysts have several characteristics
18
Decrease the Activation Energy of a reaction
19
Is not used up or altered in the reaction.
20
Stabilizes the transition state of the reaction.
21
Does not change the basic energetic of the reaction
22
Gibb’s Free Energy Progression of Reaction A B C D E F
23
Catalysts Proteins Enzymes
24
Enzyme Structure
25
Active Site Cofactor/Coenzyme Binding Site Allosteric Site
26
There are three main areas we will focus on.
27
Active Site
28
Cofactor/Coenzym e Binding Site. Cofactor/Coenzyme Binding Site
29
Allosteric Site
30
Enzyme Mechanism
31
Enzyme Action Cofactor/Coenzyme Enzyme - Inactive Enzyme - Active
32
Enzyme Action (cont.) Enzyme - Active Substrate Enzyme - Active
33
Enzyme Action (cont.) Enzyme - Active
34
Enzyme Action (cont.) Enzyme - Active
35
Enzyme Pathways
36
ABCD E1E2E3
37
Pathways allow for smaller energy increments
38
Enzyme Regulation
39
Competitive Inhibition Substrate Inhibitor Enzyme - Active
40
Consider these Situations Enzyme - Active
41
But what about this one? Enzyme - Active
42
Feedback Inhibition ABCD E1E2E3
43
Feedback Mechanism Inhibited Enzyme
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.