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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#Question id: 10129

#Section 2: General Biology

Oxidation of water to form molecular oxygen is very difficult: The photosynthetic oxygen-evolving complex is the only known biochemical system that carries out this reaction which essential cofactor are involved in the water-oxidizing process?

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#Question id: 1948

#Section 2: General Biology

In rheumatoid arthritis the non-lymphoid synovial tissue shows aberrant expression of:

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#Question id: 14876

#Section 1: Engineering Mathematics

  is equal to

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#Question id: 2505

#Section 3: Genetics, Cellular and Molecular Biology

The movement of a motor protein along a cytoskeletal filament is most analogous to:

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#Question id: 126

#Section 2: General Biology

Which statement is false about lipid rafts?