Cellular Resperation

Glycolosis breakdown

  • 1 molecule of glucose (6CC) is broke into 2 molecules of pyruvic acid (each 3CCs)

  • 2 atp molecules are used for this

  • in the end 4 are gained (2 as atp and 2 as NAD+ to NADH)

  • the two molecules of pyruvic acid are sent to krebs cycle and the NADH is sent to the ETC

Krebs cycle breakdown

  • 1 molecule of pyruvic acid enters the mitochondria and a carbon molecule is broken off and released as CO2 (NADH is also released and sent to ETC)

  • the 2 molecules are then turned into Acetyl CoA which combines with a 4 carbon compound to produce citric acid

  • the now 6 carbon compound is broken back down to 4 and relaeses 2 CO2 otw (2 NADH are also released and sent to ETC)

  • Energy relaeased by the breaking and rearranging of carbon bonds is captures in the forms of ATP, NADH, and FADH2

  • in total: 4 NADH realeased, 1 ATP, and 1 FADH2

ETC

  • high energy electrons from NADH (from glycolosis and krebs) and Fadh2 (from krebs) are passed carrier to carrier down the ETC

  • water is fromed when oxygen accepts the high energy elctrons along with hydrogen ions

  • energy generated by the ETC is used to move hydrogen ions acorrs the inner membrane into the innermembrane space

  • the h+ ions move back across the membrane through atp synthase which converts the ADP into ATP by the spinning of the H+ ions