AP BIOLOGY

CELL RESPIRATION

OXIDATIVE PHOSPHORYLATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
HIgh energy electron carriers FADH2 and NADH are oxidized and they release what?
A
Oxygen
B
Water
C
Electron
D
ATP
E
Proton
Explanation: 

Detailed explanation-1: -These carriers take the electrons from NADH and FADH2, pass them down the chain of complexes and electron carriers, and ultimately produce ATP. More specifically, the electron transport chain takes the energy from the electrons on NADH and FADH2 to pump protons (H+) into the intermembrane space.

Detailed explanation-2: -The electron transport chain (aka ETC) is a process in which the NADH and [FADH2] produced during glycolysis, -oxidation, and other catabolic processes are oxidized thus releasing energy in the form of ATP.

Detailed explanation-3: -As a result, the electrons from FADH2 do not pump as much electrons across the membrane as NADH. This results in a lower proton gradient created from FADH2 then NADH and therefore less ATP production from FADH2.

Detailed explanation-4: -Basically, the NADH and FADH2 molecules are affixed with electrons and are transferred to the inner membrane of the mitochondria. They travel down the electron transport chain, releasing the electrons that they once had. The end result is loads of energy, approximately 34 ATP (energy molecule).

Detailed explanation-5: -Answer and Explanation: NADH and FADH2 are oxidized during the electron transport chain.

There is 1 question to complete.