Textbook Question
Most oxidation reactions in bacteria involve the _______.
a. removal of hydrogen ions and electrons
b. removal of oxygen
c. addition of hydrogen ions and electrons
d. addition of hydrogen ions
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12. Microbial Metabolism
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: Oxidation involves the loss of electrons, while reduction involves the gain of electrons.
Identify the role of glucose in the reaction: Glucose donates electrons to NAD+, which means glucose is losing electrons.
Relate the loss of electrons to oxidation: Since glucose is losing electrons, it is undergoing oxidation.
Consider the role of NAD+: NAD+ is gaining electrons from glucose, which means NAD+ is being reduced to NADH.
Conclude that when glucose donates electrons to NAD+, it is oxidized, as oxidation is defined by the loss of electrons.
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