What is the main purpose of the electron transport chain quizlet?
The main purpose of the electron transport chain is to build up a surplus of hydrogen ions (protons) in the intermembrane space sp that there will be a concentration gradient compared to the matrix of the mitochondria. This will drive ATP synthase.
What is the waste product of the electron transport chain?
Water is the waste product of the electron transport system when performing in the presence of oxygen.
What is the purpose of the electron transport chain and what are the major reactants and products?
The ultimate goal of the ETC is to produce the high-energy molecule adenosine triphosphate (ATP) to catalyze biochemical reactions. The precursors of ATP, adenosine diphosphate (ADP) and inorganic phosphate (Pi) are readily imported into the mitochondrial matrix.
What is the most significant feature of enzyme complex 3 of the electron transport chain?
Electron Transport – Enzyme Complex 3: The significant feature is the heme structure containing the iron ions, initially in the +3 state and changed to the +2 state by the addition of an electron.
What goes into the electron transport chain and where does it come from?
The electron transport chain (ETC) is the final step of cellular respiration and takes place in the mitochondrion. The process takes place in the inner mitochondrial membrane. NADH and FADH2, generated by glycolysis and the Kreb’s cycle, deposit their electrons into the transport chain.
What accounts for the different number of ATP?
What accounts for the different number of ATP molecules that are formed through cellular respiration? The electron transport chain differs in composition between species, so different organisms will make different amounts of ATP using their electron transport chains.
What produces about 38 molecules of ATP?
Most of the ATP produced by aerobic cellular respiration is made by oxidative phosphorylation. Biology textbooks often state that 38 ATP molecules can be made per oxidized glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and about 34 from the electron transport system).