Krebs Cycles
Stages of Krebs Cycle
Acetyl CoA (2C) from the Link Reaction enters the cycle and joins with oxaloacetate (4C)
to from a 6-carbon compound, citrate (6C)
Citrate is decarboxylated and dehydrogenated to release CO₂ and reduce NAD to NADH
and forms a 5-carbon compound
5 carbon compound is further decarboxylated and dehydrogenated to release CO₂ and
reduce NAD to NADH and forms a 4 carbon compound
Substrate level phosphorylation takes place and produces a molecule of ATP from the 4-
carbon compound, forming a different 4 carbon compound
4-carbon compound is dehydrogenated to reduce FAD to FADH and form another 4
carbon compound
4-carbon compound is dehydrogenated to reduce NAD to NADH and form oxaloacetate
Stages of Krebs Cycle
Acetyl CoA (2C) from the Link Reaction enters the cycle and joins with oxaloacetate (4C)
to from a 6-carbon compound, citrate (6C)
Citrate is decarboxylated and dehydrogenated to release CO₂ and reduce NAD to NADH
and forms a 5-carbon compound
5 carbon compound is further decarboxylated and dehydrogenated to release CO₂ and
reduce NAD to NADH and forms a 4 carbon compound
Substrate level phosphorylation takes place and produces a molecule of ATP from the 4-
carbon compound, forming a different 4 carbon compound
4-carbon compound is dehydrogenated to reduce FAD to FADH and form another 4
carbon compound
4-carbon compound is dehydrogenated to reduce NAD to NADH and form oxaloacetate
