Citric Acid Cycle

The citric acid cycle occurs in all plants and animals. 
It is a series of enzymatic reactions in the mitochondrion. 
In this cycle, high-energy phosphate compounds are
produced to serve as the source of cellular energy.

The citric acid cycle is also called the Krebs cycle, after its primary discoverer, Sir Hans Krebs. 

Pyruvate oxidation

Electron transport chain

The net energy gain in the citric acid cycle is 2 ATP's, 6 NADH's, and 2 FADH₂'s. 
This occurs in the matrix of the mitochondrion.

The NAD⁺'s and FAD⁺'s come from the electron transport chain.

BACK to main

to calvin benson cycle page

to C4 plants page

to pyruvate oxidation page

to electron transport chain page