All we need now is a diagram... Just follow the above text and try to imagine this as a circle
_.,--'''--,.__
CoA Citric Acid `'--, ---->CO2
<---------- (6 Carbons) \ <-----NAD+
/ | --->NADH+H2
| |
Acetyl CoA | alpha-Ketaglutaric Acid
(2 Carbons | (5 Carbons)
enter cycle) | ADP----> | ---->CO2
-------> { <---H2O ATP<---- | <----NAD+
| | ---->NADH+H2
| Succinic Acid
| (4 Carbons)
Oxylaocetic Acid |
(4 carbons) / <---FAD
| _/' ---->FADH2
| _,-'
NAD+----> `\__ Malic Acid
NADH+H+<---- `----(4 carbons)