Explain the relationship between electron transport and oxidative...

Question

Explain the relationship between electron transport and oxidative phosphorylation. How do uncoupling proteins 'uncouple' this relationship in brown adipose tissue?

Accepted Answer

Hello everyone. Here's our next problem. The final electronic sector during the electron transport chain of oxidative phosphor relation is and our choices are N A. D. H. F A D. H. Two, A teepee and molecular oxygen. Well, let's recall from our content videos that when we think about the electron transport chain. So let's think of the series of complexes and electrons Get transferred from 1 to the next. And these electrons that are a high state of energy at the beginning of the chain, they lose energy with each transfer down at the end. The ultimate except of these electrons is 02. Molecular oxygen. Uh molecular oxygen has a very high electro negativity, very high affinity for electrons. So it's a good except ultimate except er for these low energy electrons at the end of the chain. These electrons come to the beginning of the chain carried by N A. D. H. Which is an electron donor. So it brings electron to the beginning of the chain. So N A. D. H is not our electronic sector. Molecular oxygen is down here at the end of the chain. So here's choice. D molecular oxygen as the answer we're looking for. We eliminate N A. D. H as it's the electric donor at the beginning. FATH two is another electron donor. Later on in the chain, electrons are a slightly lower energy So it brings them in a little later down on the electron transport chain. But again it's not an accepted er So not our answer and then A T P. Is what's produced in the end. After these electrons go through the electron transport chain. The energy from these electrons is used to pump protons across the cell membrane. And then as those protons flow down the concentration gradient through a T p, a t P is generated as the end result. But it's not an electronic sector, it's being generated in a second step. So a T P also not our answer choice here. So again, the final electronics sector during the electron transport chain is choice D molecular oxygen. See you in the next video.

Explain the relationship between electron transport and oxidative phosphorylation. How do uncoupling proteins 'uncouple' this relationship in brown adipose tissue?

Watch next