Metabolism
Cell Structure
Energy for Living
ATP and Energy
ATP and Muscles ATP +HOH --> ADP + P + Energy Relaxed muscle + energy --> contracted muscle
NAD+
ATP and Muscles
Oxidation of Ethanol with NAD+
FAD
Electron Transport
FMN similar to FAD
Electron Transport
Cytochrome
Electron Transport
ATP Synthesis 1.Electrons are transferred from NADH, through a series of electron carriers, to O2. 2.Transfer of electrons bycarriers generates a (H+) gradient across the inner mitochondrial membrane. 3. H+ diffuses back across the inner mitochondrial membrane, ATP is synthesized.
How does ATP synthase work?
Works like a rotar. Every time three protons are pumped through the channel, the F1 subunit rotates 120 degrees.
What happens at the end of electron transport? The overall electron chain transport reaction is: 2 H e- + 1/2 O 2 ---> H 2 O + energy Notice that 2 hydrogen ions, 2 electrons, and an oxygen molecule react to form as a product, water with energy released in an exothermic reaction.