Multiple Choice
During the reaction C6H12O6 + 6 O2 → 6 CO2 + 6 H2O, which compound is reduced as a result of the reaction?
8. Respiration
Redox Reactions
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When glucose donates electrons to NAD+ creating NADH, the glucose molecule becomes:
a) Hydrolyzed.
b) Oxidized.
c) Neutral.
d) Reduced.
A
Hydrolyzed.
B
Oxidized.
C
Neutral.
D
Reduced.
Verified step by step guidance1
Understand the concept of oxidation and reduction: In biological systems, oxidation refers to the loss of electrons, while reduction refers to the gain of electrons.
Identify the role of glucose in the reaction: Glucose donates electrons to NAD+, which means glucose is losing electrons.
Apply the concept of oxidation to glucose: Since glucose is losing electrons, it is undergoing oxidation.
Recognize the role of NAD+ in the reaction: NAD+ is gaining electrons from glucose, which means it is being reduced to form NADH.
Conclude the process: Since glucose donates electrons and is oxidized, the correct answer is that the glucose molecule becomes oxidized.
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