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How the NAD+ Works

View the animation below, then complete the quiz to test your knowledge of the concept.






1Cells obtain energy by ________ food molecules such as glucose.
A)reducing
B)oxidizing
C)redoxing
D)anabolizing
E)phosphorylating



2Which of the following best describers the reduction of the coenzyme NAD?
A)NAD + H -> NADH
B)NAD+ + H -> NADH
C)NAD+ + H -> NADH2
D)NADH -> NAD+ + H
E)NADH -> NAD + H



3A hydrogen atom consists of
A)protons only.
B)electrons only.
C)a proton and an electron.
D)a proton and several electrons.
E)a variable number of protons and electrons.



4Whenever a molecule is oxidized, another molecule must be reduced.
A)True
B)False



5NADH serves as an electron carrier that can donate its hydrogen to other molecules.
A)True
B)False







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