C. roseus cells immobilized in Ca-alginate beads of diameter 0.5 mm are used for production of indole alkaloids (IA) in a fluidized-bed bioreactor. The rate limiting nutrient is glucose and no intraparticle diffusion limitations exist. Use the following data: Flow rate of the feed: Q = 1 l/h, Glucose in the feed: So = 30 g/l, Plant Cell Concentration: X = 6 g/l reac. The rate constant for IA formation: k = 5 d-1 (g/l)-1 Ks = 0.4 g/l, Column diameter: Do = 0.15 m. Growth is negligible and Monod kinetics is valid. For 95% glucose conversion determine required hydraulic residence time.

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#Question id: 3289

#SCPH28 | Zoology

If, someday, an archaean cell is discovered whose SSU-rRNA sequence is more similar to that of humans than the sequence of mouse SSU-rRNA is to that of humans, the best explanation for this apparent discrepancy would be

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#Question id: 2110

#SCPH06 I Botany

According to the fluid mosaic model of cell membranes, phospholipids:

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#Question id: 4759

#SCPH01 Biochemistry

which of the following is not a mechanism for sex determination?

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#Question id: 1264

#SCPH05 I Biotechnology

 Desmosomes

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#Question id: 15237

#SCPH28 | Zoology

Agarose gels are used for the electrophoresis of

A. Proteins

B. DNA

C. RNA

D. Amino acids