#ElectronTransportChain

#Biology

#Respiration

Introduction

• The electron transport chain (ETC) is a series of protein complexes and other molecules that transfer electrons from donors to acceptors through redox reactions.

• There are 3 Functions for ETC :

  Generates ATP,

  Stores energy, and

  Releases energy.

• ETC is the Last Step of Anaerobic Respiration.

• Anaerobic Respiration has 4 Main Steps :

  Glycolysis,

  Link Reaction,

  Kreb's Cycle and

  ETC

Steps

• Generation of a proton gradient across the mitochondrial membrane. Proton accumulation occurs in the intermembrane space of mitochondria.

• Reduction of molecular oxygen and formation of water. Oxygen acts as the terminal electron acceptor.

  
  

• ATP synthesis by chemiosmosis. The enzyme ATP synthase catalyzes ATP synthesis.

The Video