What happens to electrons in the electron chain?

Answer 1

Oxygen (O2) is the electron acceptor in the Electron Transport Chain.

"The electrons are passed to O2, the final electron acceptor of the electron transport system. This oxygen, now negatively charged because it has acquired additional electrons, combines with H+ ions, which are positively charged because they donated electrons at the beginning of the electron transport system, to form H2O." (Sherwood 36)

References:

Sherwood, Lauralee. Human Physiology: from Cells to Systems. 7th ed. Australia: Brooks/Cole, Cengage Learning, 2010. Print.

Answer 2

At the end of the chain is oxygen, the final electron acceptor, that accepts these electrons and hydrogen coming down it's concentration gradient through ATP synthase where water is then formed.

Answer 3

In the electron transport chain, electrons are transferred along a series of protein complexes embedded in the inner mitochondrial membrane. As the electrons move through the chain, they gradually release energy that is used to pump protons across the membrane, creating a proton gradient. This gradient is then used to generate ATP through ATP synthase.

Answer 4

Accept electrons, passing them through a series of redox reaction..

pump hydrogen ions from the matrix of the mitochondria to the inter membrane space

Answer 5

At the end of the chain, the spent electrons join with H+ ions and oxygen to make molecules of water.

Answer 6

The electrons are pumped out of the electron transport chain and essentially recycled; they are given the opportunity to again make NADH and FADH and reeneter the electron transport chain.

Answer 7

photosystem 1