Ch' 5: The Working Cell

1
Ch. 5 The Working Cell

• The chemistry of life..

2
Organisms transform energy

• Energy
• KE
• examples
• PE
• examples
• energy can be transformed from one form to
  another

3
Laws of Thermodynamics

• The first law of thermodynamics
• E is neither created or destroyed
• The second law of thermodynamics
• Entropy
• organisms live at the expense of free energy

4
Cellular Metabolism

• Makingbreaking down.making.breaking
  down.making.breaking down..makingbreaking
  down..

5
Why do I have to do all this work!
ATP
6
ATP

• structure
• chemical reaction that results in the release of
  energy
• How does ATP perform work?
• Regeneration of ATP

7
Enzymes

• review characteristics of enzymes
• enzyme-substrate complex
• active site
• energy of activation
• What affects enzyme activity???????
• Cofactors
• coenzymes
• enzyme inhibitors

8
Cellular Transport

• See handout on passive and active transport..