A commonly used municipal wastewater treatment to restart activated sludge bioreactors. Which technique is involved in this remediation process?

#Question id: 23257

#SCPH06 I Botany

#Question id: 3866

#SCPH05 I Biotechnology

Which of the following statements about E. coli RNA polymerase (core enzyme) is false?

#Question id: 3431

#SCPH28 | Zoology

In the territorial behavior of the stickleback fish, the red belly of one male elicits attack from another male by functioning as

#Question id: 6983

#SCPH28 | Zoology

In vertebrates, the heart forms from:

#Question id: 14295

#SCPH05 I Biotechnology

Pseudomonas methylotrophus is used to produce single-cell protein from methanol in a 1000 m³ pressure-cycle airlift fermenter. The biomass yield from substrate is 0.41 g g^{- 1}, K_S is 0.7 mg l^{- 1}, and the maximum specific growth rate is 0.44 h^{- 1}. The medium contains 4% (w/v) methanol. A substrate conversion of 98% is desirable. The reactor may be operated either in batch or continuous mode. If operated in batch, an inoculum of 0.01% (w/v) is used and the downtime between batches is 20 h. If operated continuously, a downtime of 25 d is expected per year. Neglecting maintenance requirements, compare the annual biomass production from batch and continuous reactors?

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