Figure 9.3 -What Happens at the End of the Chain

Multiple Choice

Figure 9.3
-What happens at the end of the chain?

A) The 2 original electrons combine with NAD⁺.
B) The 2 original electrons combine with oxygen.
C) 4 electrons combine with oxygen and protons.
D) 4 electrons combine with hydrogen and oxygen atoms.
E) 1 electron combines with oxygen and hydrogen.