Imagine being given an intact compartment that has a way to do an ETC with O2 as
ID: 919393 • Letter: I
Question
Imagine being given an intact compartment that has a way to do an ETC with O2 as a terminal electron acceptor and a way to harvest a proton gradient for energy. If you didn’t have a TCA cycle in there and you couldn’t use NAD+ or FAD; could you design a functional Energy Cycle? Invent a molecule act as an electron and proton acceptor and donor for use in energy production via a gradient pump. Your molecule may use carbon, but it is not limited to any specific chemical structure. Please DO NOT just copy any of the starting molecules of the TCA Cycle. The use of molecules found in the cell other than those involved in the TCA cycle is permitted but is not required
Explanation / Answer
Answer:
NADH dehydrogenase is a protein that receives an electron. And NADH gives electrons to NADH dehydrogenase and FADH2 gives electrons to ubiquinone.Where ubiquinone is a carrier that passes electrons to the complex.
Acetyl coA formation also involves transfer of electron which involves carbon as CO2. This CO2 is removed when pyruvate enters into mitochondrion.
There exists more energy transfer during the redox reactions involving NAD+ and FAD.