Cellular Respiration Part 1 AP Biology Cellular Respiration Part 1

Electron Transport chain creating a concentration gradient in a Thylakoid

Redox reaction

Energy Coupling between Photosynthesis and Cellular Respiration Light energy ECOSYSTEM Photosynthesis in chloroplasts CO2 + H2O Organic molecules + O2 Cellular respiration in mitochondria ATP powers most cellular work Heat energy

Cellular Energy

Is Oxygen present?

Photosynthesis and Cellular Respiration chemical reactions (Remember… conservation of matter.) 6 CO2 + 6 H2O  C6H12O6 + 6 O2 + Heat Photosynthesis C6H12O6 + 6O2  6CO2 + 6H2O + Heat + Free E Cellular 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 is ALWAYS located on a membrane

Oxygen is at the end

Process of Cellular Respiration

Energy Investment Phase & Phosphofructokinase

Energy Payoff Phase