1
QuizMultiple Choice

The Social Costs of Resource Use — Unit test

Question 1 • * FL-2001340-Environmental Science Sem 2

Cyanobacteria have been engineered to produce isobutanol directly. What advantage does this have over other alternative biofuels?

Answer
A
It is an inherently renewable fuel source.
B
Multiple processing steps can be avoided.
C
They produce chemical energy through photosynthesis.
D
They make a biofuel alternative to gasoline.

Explanation

Producing isobutanol directly in cyanobacteria avoids having to harvest biomass and then process it through multiple conversion steps. That makes “Multiple processing steps can be avoided” the advantage. Renewable fuel, photosynthesis, and replacing gasoline can also apply to other biofuels, so they do not identify this specific advantage.

AI-written and checked against the verified answer.

Next