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Recent questions tagged bioprocess
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GATE BT 2025 | Question: 18
If the doubling time of a bacterial population is $3$ hours, then its average specific growth rate during this period is $\_\_\_\_\_$ $\mathrm{h}^{-1}$.(Round off to two ...
Shubham Sharma 2
1.4k
points
asked
Mar 6, 2025
Microbiology
gatebt-2025
numerical-answers
microbiology
microbial-growth
bioprocess
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0
0 votes
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0 answers
GATE BT 2024 | Question: 46
Ethanol is produced in a $10,000$ L stirred bioreactor using an impeller of diameter $1 \mathrm{~m}$. The density and viscosity of fermentation broth are $1000 \mathrm{~k...
admin
3.0k
points
asked
Mar 25, 2024
Bioreaction Engineering
gatebt-2024
bioreaction-engineering
numerical-answers
bioprocess
numerical-ability
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0
0 votes
1
1 answer
GATE BT 2024 | Question: 50
A fed batch process is running at quasi-steady state with respect to substrate and biomass concentration. At $2 \mathrm{~h}$, the culture volume is $500 \mathrm{~L}$ with...
admin
3.0k
points
asked
Mar 25, 2024
Bioreaction Engineering
gatebt-2024
bioreaction-engineering
numerical-answers
bioprocess
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1
1 vote
1
1 answer
GATE BT 2023 | Question: 36
The following reaction represents biomass synthesis from hexadecane$\mathrm{C}_{16} \mathrm{H}_{34}+12.5 \mathrm{O}_2+2.13 \mathrm{NH}_3 \rightarrow 10.6 \mathrm{CH}_{1.6...
admin
3.0k
points
asked
May 21, 2023
Bioreaction Engineering
gatebt-2023
bioreaction-engineering
bioprocess
numerical-answers
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0
0 votes
0
0 answers
GATE BT 2022 | Question: 53
A pilot sterilization was carried out in a vessel containing $1000\; \text{m}^{3}$ medium with an initial spore concentration of $10^{8} \;\text{spores/ml.}$ The accepted...
Lakshman Bhaiya
1.4k
points
asked
Mar 20, 2022
Bioreaction Engineering
gatebt-2022
numerical-answers
bioprocess
bioreaction-engineering
numerical-estimation
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0
0 votes
1
1 answer
GATE BT 2021 | Question: 26
Which one of the following represents non-growth associated product formation kinetics in a bioprocess system? $X$ and $P$ denote viable cell and product concentrations, ...
go_editor
1.4k
points
asked
Mar 1, 2021
Bioreaction Engineering
gatebt-2021
bioreaction-engineering
bioprocess
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0
0 votes
1
1 answer
GATE BT 2021 | Question: 45
It is desired to scale-up a fermentation from $1L$ to $1000L$ vessel by maintaining a constant power-to-volume ratio. The small fermenter is operated at an agitator speed...
go_editor
1.4k
points
asked
Mar 1, 2021
Bioreaction Engineering
gatebt-2021
numerical-answers
bioprocess
bioreaction-engineering
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0
0 votes
1
1 answer
GATE2016-17
Fed batch cultivation is suitable for which of the following?Processes with substrate inhibitionProcesses with product inhibitionHigh cell density cultivationP and Q only...
Milicevic3306
7.9k
points
asked
Mar 26, 2018
Upstream and Downstream Processing
gate2016
bioreaction-engineering
bioprocess
upstream-and-downstream-processing
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0
0 votes
1
1 answer
GATE2018-50
At the end of a batch culture, glucose solution is added at a flow rate of $200 \: ml/h$. If the culture volume after $2$ h of glucose addition is $1000$ ml, the initial ...
gatecse
2.7k
points
asked
Feb 20, 2018
Bioprocess Engineering and Process Biotechnology
gate2018
bioprocess
numerical-answers
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0
0 votes
0
0 answers
GATE2018-46
A microbial strain is cultured in a $100$ L stirred fermenter for secondary metabolite production. If the specific rate of oxygen uptake is $0.4 \: h^{-1}$ and the oxygen...
gatecse
2.7k
points
asked
Feb 20, 2018
Bioprocess Engineering and Process Biotechnology
gate2018
bioprocess
fermenter
numerical-answers
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0
0 votes
0
0 answers
GATE2018-45
An aqueous solution containing $6.8$ mg/L of an antibiotic is extracted with amyl acetate. If the partition coefficient of the antibiotic is $170$ and the ratio of water ...
gatecse
2.7k
points
asked
Feb 20, 2018
Bioprocess Engineering and Process Biotechnology
gate2018
bioprocess
technology
numerical-answers
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1
1 vote
0
0 answers
GATE2018-44
Moist heat sterilization of spores at $121 ^\circ C$ follows first order kinetics as per the expression: $$\dfrac{dN}{dt}=-k_dN$$ where, $N$ is the number of viable spore...
gatecse
2.7k
points
asked
Feb 20, 2018
Bioprocess Engineering and Process Biotechnology
gate2018
bioprocess
technology
numerical-answers
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0
0 votes
0
0 answers
GATE2018-36
Shear stress versus shear rate behavior of four different types of fluids (I, II, III and IV) are shown in the figure below.Which one of the following options is correct?...
gatecse
2.7k
points
asked
Feb 20, 2018
Bioprocess Engineering and Process Biotechnology
gate2018
bioprocess
engineering
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0
0 votes
0
0 answers
GATE2018-13
Which one of the following bioreactor configurations is the basis for a trickling biological filter?Stirred tankPacked bedAir liftFluidized bed
gatecse
2.7k
points
asked
Feb 20, 2018
Bioprocess Engineering and Process Biotechnology
gate2018
bioprocess
engineering
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