To ensure turbulent conditions and minimum mixing time during agitation with a turbine impeller, the Reynolds number must be at least 10⁴. A stirred laboratory-scale fermenter with a turbine impeller 5 cm in diameter is operated at 800 rpm. If the density of broth being stirred is close to that of water. The mixing system is scaled up so the tank and impeller are 15 times the diameter of the laboratory equipment. The stirrer in the large vessel is operated so that the stirrer tip speed (tip speed = π N i D i) is the same as in the laboratory apparatus. How does scale-up affect the maximum viscosity. 

TLS Online TPP Program

#Question id: 23151

#SCPH06 I Botany

If the concentration of Ca2+ is high inside the cell and fura-2 dye is used to map the concentration which of the following conditions will prevail?

1. Fluorescence will decrease

2.  Fluorescence will increase

3. Emission of light at higher wavelength

4. Emission of light at lower wavelength

Which of the following options are correct?

TLS Online TPP Program

#Question id: 22947

#I Life Science/ Life Sciences Group – I-V

FLOWERING LOCUS M (Floral repressor) that is expressed in leaves and apex, belongs to:

TLS Online TPP Program

#Question id: 3674

#SCPH01 Biochemistry

Which property is shared by E. coli DNA polymerase I and DNA polymerase III?

TLS Online TPP Program

#Question id: 9575

#SCPH28 | Zoology

The warm counter current known as El niño moves southward along the coast of peru each year around christmastime. When this counter current flows strongly, it displaces the cold peru current offshore and results in:

TLS Online TPP Program

#Question id: 356

#SCPH05 I Biotechnology

How does 0.5 M sucrose (molecular mass 342) solution compare to 0.5 M glucose (molecular mass 180) solution?