Cellular Metabolism

Cellular Metabolism

1. Endergonic Reactions

   • Requires net input of energy
   • Yield products rich in potential energy
   • Low energy to high energy
     • Add phosphate with dehydration reaction
   • Photosynthesis

2. Exergonic Reactions

   • Releases energy
   • Cellular Respiration
     • Uses oxygen to convert chemical energy stored in fuel molecules to a form of chemical energy that the cell can use to perform work
     • Substantial amount of energy released as ATP
       • ATP = immediate source of energy
       • Released with hydrolysis reaction
   • Burning

3. Sum of all chemical reactions occurring within an organism

4. Energy Coupling

   • Use of energy released from exergonic reactions to power endergonic reactions

5. Biochemical Reactions

   • Dehydration Reactions
   • Hydrolysis Reaction
   • Require Water