객관식
A strictly fermentative bacterium produces energy primarily by which of the following processes?
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12. Microbial Metabolism
Fermentation & Anaerobic Respiration
객관식
Fermentation allows a cell to:
A
Recycle NADH to NAD+ for glycolysis.
B
Use NADH as a terminal electron acceptor.
C
Reduce NAD+ to NADH for glycolysis.
D
Synthesize ATP via ATP synthase.
검증된 단계별 안내1
Understand the process of fermentation: Fermentation is a metabolic process that converts sugar to acids, gases, or alcohol in the absence of oxygen. It is an anaerobic process used by cells to generate energy.
Identify the role of NAD+/NADH in glycolysis: During glycolysis, NAD+ is reduced to NADH as it accepts electrons. This is crucial for the continuation of glycolysis, as NAD+ must be regenerated to keep the process going.
Explore how fermentation recycles NADH to NAD+: In the absence of oxygen, cells use fermentation to oxidize NADH back to NAD+. This recycling is essential for glycolysis to continue producing ATP.
Differentiate between the options: Analyze each option to determine which correctly describes the role of fermentation. Fermentation does not use NADH as a terminal electron acceptor, nor does it synthesize ATP via ATP synthase.
Conclude with the correct answer: Based on the understanding of fermentation, the correct answer is that fermentation allows a cell to recycle NADH to NAD+ for glycolysis, ensuring the continuation of ATP production through glycolysis.
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