Question

If one (1) molecule of glyceraldehyde 3-phosphate is oxidized via glycolysis, the PDC, and the CAC in a skeletal muscle cell, how many protons are pumped into the inner membrane space at ETC Complex IV?

Answer 1

An electron transport chain (ETC) is a series of complexes that transfer electrons through redox reactions and couples this electron transfer with the transfer of protons across the membrane.PDC is located in the mitochondrial matrix and it is a multiple enzyme complex.The CAC (citric acid cycle) plays a major role in the process of energy production and biosynthesis.

Electron transport is a series of redox reactions in that electrons are passed rapidly from one component to the next,to the endpoint of the chain where the electrons reduce molecular oxygen,producing water.

• NADH is produced from glycolysis
• nadh from glycolysis can be converted to energy via ETC.
• Mitochondrial inner membrane is impermeable to NADH.   
  LLLLLLL Mitochondrial Mateix wit ATP = 17 FADH FAD QH2 dehydrogenauer + - АН Innes Membiane Space on 4o-P-OH prot Flavopeokin OH r dchyleogenase он alycol-3 Dehydroxyacetone prospecte phosphole Talycuol-3- phosphale Dehydrogenael NADH+H+ NADT N 2000* 2NADH+2H+ alorose Glycolysis 2 Pyruvate Glycolysis :-
  
  In the process complex I (44t) au pomped into the inter membrane space. In the process compler ill also 447 n proton all pumped into the inter membrane space Complex N pumps 2H+ (protons) into the inter membiare space.
  Therefore 2 protons are pumped at ETC Complex IV.