Save
AQA A-Level Biology
Energy Transfers
Kreb Cycle
Save
Share
Learn
Content
Leaderboard
Learn
Created by
Ollie
Visit profile
Cards (6)
The Kreb Cycle occurs in the
matrix
AcetylCoA
reacts with 4C
Oxaloacetate
to form 6C
Citrate
, releasing
CoA
6C Citrate is
dehydrogenated
and
decarboxylated
releasing
CO2
and reducing
NAD
to form a 5C molecule
5C Molecule is
decarboxylated
and
dehydrogenated
forming CO2, reduced
NAD
and a 4C molecule
4C Molecule undergoes
substrate-level phosphorylation
creating
ATP
, and is
dehydrogenated
forming reduced
FAD
and
NAD
, and reforming
oxaloacetate
Net Gain of the Kreb Cycle per Cycle = 3x Reduced
NAD
+ 1x Reduced
FAD
+ 2x
CO2
+
ATP