AP Biology
Cellular RespirationPart 1
Electron Transport chain creating a concentration gradient in a Thylakoid
Redox reaction
Energy Coupling between Photosynthesis and Cellular
Respiration
ECOSYSTEM
Lightenergy
Photosynthesisin chloroplasts
Cellular respirationin mitochondria
Organicmolecules
+ O2CO2 + H2O
ATP
powers most cellular work
Heatenergy
Cellular Energy
Is Oxygen present?
Photosynthesis and Cellular Respiration chemical reactions
(Remember… conservation of matter.)
6 CO2 + 6 H2O C6H12O6 + 6 O2 + HeatPhotosynthesis
C6H12O6 + 6O2 6CO2 + 6H2O + Heat + Free ECellular Respiration
ATP Structure
Phosphorylation using Free energy
Redox reaction
Valence is important with electronegativity
Series of Redox reaction(Electron Transport chain)
“Making” of electron carriers
• NAD⁺ +2 electrons + H⁺ ion = NADH
• FAD⁺ + 2 electrons + 2 H⁺ ions = FADH₂
Electron Transport Chain is ALWAYS located on a membrane
Oxygen is at the end
Process of Cellular Respiration
Energy Investment Phase &Phosphofructokinase
Energy Payoff Phase