In cells expressing mutant versions of Sar1 or ARF that cannot hydrolyze GTP, what would be the result?

a. Vesicle coats do not form and vesicle buds pinch off.

b. The mutant proteins cannot trigger disassembly of the coat all available coat subunits eventually become permanently.

c. Unable to fuse with target membranes.

d. Blocking of coat disassembly.

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#Question id: 21947

#Unit 12. Biochemical Engineering

Match the KLa determination method in Group I with the characteristics of the method in 1 Group II

P.	oxygen balance method	1.	aeration of an actively respiring culture is stopped and switched on again
Q	static gassing out technique	2.	yields greater OTR and KLa than other methods
R.	dynamic gassing method	3.	It can be done precisely only at steady state
S.	sodium sulphite oxidation method	4.	Non respiring biological system is required

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#Question id: 21948

#Unit 12. Biochemical Engineering

Under unaerated condition in a fermentor, the power consumed by a single impeller was 10,000 W. The diameter of the impeller D is 1m and the density of the medium is 1000 kg/m3 and the stirrer speed is 1s-1. If one more impeller is added to the fermentor, power consumption would be approximately

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#Question id: 21971

#Unit 12. Biochemical Engineering

In an anaerobic fermentor, broth is agitated intensely at 100rpm in a 3.0 m3 baffled tank using a Rushton turbine with diameter of 0.5m. If the diameter of the

impeller is decreased to 0.25m the mixing time in (seconds) would approximately increase ………fold

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#Question id: 21978

#Unit 12. Biochemical Engineering

The ethanol yield per unit mass of substrate consumed (YP/S ) in an anaerobic fermentation process can be improved by

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#Question id: 21320

#Unit 12. Biochemical Engineering

In a lab scale reactor, the size of the air bubbles in the reactor is primarily determined by

TLS Online TPP Program

#Question id: 21486

#Unit 12. Biochemical Engineering

The equation τ = μ du/dy is also termed as