In: Biology
Which CAC enzyme activity is also part of electron transport?
Where is the citric acid cycle specifically located in eukaryotic cells?
Citric acid cycle and electron transport chain :-
• These are steps in cellular respiration process.
• Citric acid cycle (CAC) or krebs cycle occurs at mitochondrial
matrix of eukaryotic cells.
• In this process, NADH and FADH2 are produced.
• These NADH and FADH2 provide electrons to electron transport
chain and help in formation of ATP.
• Electron transport chain is situated at inner mitochondrial
membrane. This is formed by various electron carrier complexes.
Succinate dehydrogenase :-
• This enzyme is situated at inner mitochondrial membrane.
• This is the enzyme which is part of both citric acid cycle and
electron transport chain.
• In citric acid cycle, this enzyme converts succinate to fumarate
and forms FADH2 .
• In electron transport chain, this enzyme acts as compelx 2nd and
accepts electrons from FADH2 and transfer them to coenzyme Q.
Answers for question -
Part 1. - Enzyme succinate dehydrogenase.
Part 2. - Mitochondrial matrix.