Not exactly. It is true that NAD is formed during electron transport chain, however, it's not a direct product. NADH is an electron carrier that dumps its electron to the electron transport chain, which oxidizes it into NAD. NAD then goes back to become reduced by glycolysis or citric acid cycle.
No. NADH, being a reducing agent, is an electron donor. NAD+, on the other hand, is an electron acceptor.
NAD+
NADH ( Google that to get full name )
In aerobic respiration, the final electron acceptor is (usually) oxygen. Sometimes it can be sulfur or nitrogen in the absence of oxygen (as in extreme environments) in extremophiles.
O2 ADDED: Not O2, but one atom of oxygen.
nadp+
An electron transport chain (ETC) couples a reaction between an electron donor (such as NADH) and an electron acceptor (such as O2
NAD+
NADH ( Google that to get full name )
oxygen
As they both accept electrons and are reduced, but NAD carries stripped electrons from glucose ( becoming NADH ) to the electron transfer chain while oxygen is the final electron acceptor.
No, oxygen is the final electron acceptor of the electron transport chain.
NAD+ is the first electron acceptor in cellular respiration (O2 is the final acceptor).
The proteins involved in the chain, complete with ATP synthase in the end for oxidative phosphorylation, some electron carriers like NADH and FADH2, and the final electron acceptors such as O2.
In aerobic respiration, the final electron acceptor is (usually) oxygen. Sometimes it can be sulfur or nitrogen in the absence of oxygen (as in extreme environments) in extremophiles.
When an excited electron is passed to an electron acceptor in a photosystem, energy in sunlight is transformed to chemical energy.
Neither. Helium doesn't form compounds and is neither an electron donor nor an electron acceptor.
It is used as the final electron acceptor in the electron transfer chain. It takes the electron from NADH reducing it back to NAD+ allowing it to be reused in the electron transfer chain producing H2O.Without it the process would stop and the organism would very very quickly run out of energy to survive