Advanced Quiz on Engineered Microorganisms and Sustainable Biomanufacturing
A hard-level assessment focusing on cutting-edge applications of microbes in large-scale chemical production.
Quiz Questions
Answer all questions below and test your knowledge.
- 1
Which genetic modification most directly enables yeast to produce the artemisinin precursor artemisinic acid at high titers?
- 2
In bacterial polyhydroxyalkanoate (PHA) production, how does nitrogen limitation affect carbon flux?
- 3
For industrial secretion of cellulases to hydrolyze lignocellulose, which host organism provides the highest native secretion capacity?
- 4
When purifying a secreted enzyme at scale using affinity chromatography, which affinity tag is most commonly employed?
- 5
A thermotolerant lipase from Bacillus licheniformis shows optimal activity for biodiesel synthesis in which temperature range?
- 6
During multiplex CRISPR‑Cas9 editing of Corynebacterium glutamicum to boost L‑lysine output, which element is co‑expressed to mitigate Cas9 toxicity?
- 7
Which immobilization matrix offers high mechanical strength while allowing substrate diffusion for continuous succinic acid fermentation?
- 8
Life‑cycle assessment of bio‑based succinic acid versus petroleum‑derived routes shows the greatest reduction in which impact category?
- 9
In engineered Escherichia coli producing 1,3‑propanediol, which enzyme catalyzes the final reduction of 3‑hydroxypropionaldehyde?
- 10
During scale‑up of a fed‑batch fermentation where dissolved oxygen becomes limiting, which operational change most effectively restores oxygen transfer?
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