Biology · Environmental Biotechnology
Which of the following statements correctly differentiates third-generation and fourth-generation biofuels?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Both third and fourth generations refer exclusively to biogas production from anaerobic digestion of organic matter.
- 2Third-generation processes untreated algae biomass, whereas fourth-generation utilizes genetically modified or metabolically engineered algae.✓
- 3Third-generation involves metabolic engineering of algae; fourth-generation utilizes lignocellulosic residues.
- 4Third-generation biofuels are derived from sugar crops, while fourth-generation involves starch-based fermentation.
Correct answer
Third-generation processes untreated algae biomass, whereas fourth-generation utilizes genetically modified or metabolically engineered algae.
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