The physical mechanism by which excitation energy is conveyed from the chlorophyll that absorbs the light to the reaction centre, By this mechanism the excitation energy is transferred from one molecule to another by a nonradioactive process, this mechanism is known as

#Question id: 28113

#Section 5: Bioprocess Engineering and Process Biotechnology

#Question id: 28114

#Section 5: Bioprocess Engineering and Process Biotechnology

Which is the most frequently used impeller in the fermentation industry regarded as 6- flat-blade disc-mounted turbine?

#Question id: 28115

#Section 5: Bioprocess Engineering and Process Biotechnology

Transient flow range of mixing speed is obtained for

#Question id: 28116

#Section 5: Bioprocess Engineering and Process Biotechnology

A baffled fermenter with tank diameter and liquid height equal to 1.2 m is stirred using a six-blade downward-pumping impeller. The impeller diameter is 0.42 m and the stirrer speed is 1.5 s. The viscosity of the fermentation broth is 10^-2 Pa s and the density is 1000 kg m-³. Estimate the mixing time under nonaerated conditions.

#Question id: 28150

#Section 5: Bioprocess Engineering and Process Biotechnology

A purified hydrolytic enzyme (Mr 150 000) is available with the description: Gives a Vmax of 3 200 units/mg protein under optimal conditions. How many micromoles of substrate can be hydrolysed by 1 mg of protein in 1 minute  

#Question id: 31198

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology