Stoichiometric equations are used to represent growth of microorganisms provided a ' molecular formula' for the cells is available. The molecular formula for biomass is obtained by measuring the amounts of C, N, H, O and other elements in cells. For a particular bacterial strain, the molecular formula was determined to be C4.4H7.30 1.2N0.86 . These bacteria are grown under aerobic conditions with hexadecane (C16H34) as substrate. The reaction equation describing growth is:

                                    

Assuming 100% conversion, what is the yield of cells from oxygen in g g-l?

TLS Online TPP Program

#Question id: 14746

#Section 5: Bioprocess Engineering and Process Biotechnology

During cultivation of microorganism in a fermenter, various parameters are controlled by appropriate mechanism, match the following 

Probes	Mechanism
A. Thermistor	1. activation of acid/alkali group
B. Oxygen electrode	2. Activation of vegetable oil pump
C. Metal rod	3. activation of hot/cold water pump
D. pH electrode	4. increase/decrease in stirrer motor speed

Option	A	B	C	D
a)	2	3	1	4
b)	3	2	4	1
c)	1	2	4	3
d)	3	4	2	1

TLS Online TPP Program

#Question id: 14747

#Section 5: Bioprocess Engineering and Process Biotechnology

Mechanism of separation of contaminants present in air by fibrous media are. 

TLS Online TPP Program

#Question id: 14748

#Section 5: Bioprocess Engineering and Process Biotechnology

 For scaling up of a bioreactor the following parameter is assumed to be constant

TLS Online TPP Program

#Question id: 14749

#Section 5: Bioprocess Engineering and Process Biotechnology

For a turbine aeration agitation, the power consumption 

TLS Online TPP Program

#Question id: 14750

#Section 5: Bioprocess Engineering and Process Biotechnology

Diauxic pattern of biomass growth is associated with

I. multiple lag phase

II. sequential utilisation of multiple substrate

III. Simultaneous utilisation of multiple substrate

IV absence of log phase 

TLS Online TPP Program

#Question id: 14751

#Section 5: Bioprocess Engineering and Process Biotechnology

In growth curve graph, in which the biomass is plotted against time, the slope represents