Use the Following Figure to Answer the Questions Below

question 112

Multiple Choice

Use the following figure to answer the questions below.

-What happens at the end of the chain in the figure above?

• A)2 electrons combine with a proton and a molecule of NAD⁺.
• B)2 electrons combine with a molecule of oxygen and two hydrogen atoms.
• C)4 electrons combine with a molecule of oxygen and 4 protons.
• D)4 electrons combine with four hydrogen and two oxygen atoms.
• E)1 electron combines with a molecule of oxygen and a hydrogen atom.

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