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Catabolic Pathways vs. Anabolic Pathways
Catabolic breaks complex molecules to release energy.
Anabolic builds complex molecules to use energy.
Begins with a specific molecule & is catalyzed by enzymes until it reaches a product.
Kinetic/Thermal Energy (Basics)
Kinetic E is related to motion.
Thermal Energy is KE of random atom & molecule movement.
Potential/Chemical Energy (Basics)
Potential E is related to location.
Chemical Energy is PE that's releasable in chemical reactions.
Exergonic vs. Endergonic Reactions
Exergonic: Releases Free Energy & is spontaneous. (So - ∆G)
Endergonic: Absorb Free Energy & isn't spontaneous. (So + ∆G)
Cells & Equilibrium
Cells aren't in equilibrium & are open systems. The Catabolic Pathways release free energy.
Energy Coupling (Basic)
Cells managing energy by using an Exergonic Process to do an Endergonic Process.
Energy Coupling (Example)
The Exergonic Process of ATP Hydrolysis gives the energy for Endergonic Processes
ATP sends a Phosphate Group to make phosphorylated molecules for Endergonic Reactions
Adenosine Triphosphate (ATP Regeneration)
Energy from Catabolic Reactions combines a Phosphate Group to ADP to create another ATP
When the cell stops working due to environmental conditions & the cell dies.
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