Question:
Which of the following is a bacteria known for high yield of ethanol production?
Which of the following is a bacteria known for high yield of ethanol production?
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- Yeast → common ethanol production
- Zymomonas mobilis → higher yield (industrial importance)
Updated On: May 13, 2026
- Saccharomyces cerevisiae
- Pseudomonas aeruginosa
- Zymomonas mobilis
- Acetobacter aceti
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The Correct Option is C
Solution and Explanation
Concept:
Certain microorganisms are used for ethanol production due to their metabolic pathways and efficiency.
Step 1: Identify organism types.
• Saccharomyces cerevisiae → Yeast (not bacteria), commonly used but not asked here
• Zymomonas mobilis → Bacteria with high ethanol yield
Step 2: Why Zymomonas mobilis?
• Uses Entner–Doudoroff pathway
• Produces ethanol efficiently with less biomass formation
• High fermentation rate
Step 3: Analyze other options.
• Pseudomonas aeruginosa → Not used for ethanol production
• Acetobacter aceti → Produces acetic acid (vinegar), not ethanol
Step 4: Final conclusion.
Thus, the correct answer is: \[ \textit{Zymomonas mobilis \]
Step 1: Identify organism types.
• Saccharomyces cerevisiae → Yeast (not bacteria), commonly used but not asked here
• Zymomonas mobilis → Bacteria with high ethanol yield
Step 2: Why Zymomonas mobilis?
• Uses Entner–Doudoroff pathway
• Produces ethanol efficiently with less biomass formation
• High fermentation rate
Step 3: Analyze other options.
• Pseudomonas aeruginosa → Not used for ethanol production
• Acetobacter aceti → Produces acetic acid (vinegar), not ethanol
Step 4: Final conclusion.
Thus, the correct answer is: \[ \textit{Zymomonas mobilis \]
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