Biochemical Engineering | Fermentation Kinetics

To describe components of an airlift bioreactor which of the follow-ings are generally included?

Byadmin July 20, 2022

Question: To describe components of an airlift bioreactor which of the follow-ings are generally included?
[A].

Disengagement zone, air riser, downcomer

[B].

Flotsam, jetsam, downzone

[C].

Air comer, disentanglement zone, downsizer

[D].

All of the above

Answer: Option A

Explanation:

No answer description available for this question.

Agitation And Aeration | Biochemical Engineering

The rate limiting step in the movement of oxygen from the gas phase in a bubble to the cell is the movement of oxygen molecules through

Question: The rate limiting step in the movement of oxygen from the gas phase in a bubble to the cell is the movement of oxygen molecules through
[A].

gas-liquid interface
[B].
bubble boundary layer
[C].
bulk liquid
[D].
gas phase

Answer: Option B

Explanation:

No answer description available for this question.

Read More The rate limiting step in the movement of oxygen from the gas phase in a bubble to the cell is the movement of oxygen molecules through
Biochemical Engineering | Immobilized Enzyme

The immobilized enzyme produced by micro encapsulation technique provides

Question: The immobilized enzyme produced by micro encapsulation technique provides
[A].

an extremely large surface area
[B].
smaller surface area
[C].
high amount of solvent
[D].
relatively smaller surface area

Answer: Option A

Explanation:

No answer description available for this question.

Read More The immobilized enzyme produced by micro encapsulation technique provides
Biochemical Engineering | Enzymes And Kinetics

Which of the following activity is possible by transferases?

Question: Which of the following activity is possible by transferases?
[A].

Transfer of methyl groups
[B].
Transfer of glycosyl group
[C].
Both (a) and (b)
[D].
None of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More Which of the following activity is possible by transferases?
Biochemical Engineering | Fermentation Reactors

In fed-batch fermentation, mass of substrate utilized is calculated using the relationship

Question: In fed-batch fermentation, mass of substrate utilized is calculated using the relationship
[A].

initial mass of substrate in the reactor + final mass of substrate in the reactor + flow rate x [substrate in the feed]
[B].
initial mass of substrate in the reactor – final mass of substrate in the reactor + flow rate x [substrate in the feed]
[C].
initial mass of substrate in the reactor + final mass of substrate in the reactor – flow rate x [substrate in the feed]
[D].
initial mass of substrate in the reactor + final mass of substrate in the reactor – flow rate

Answer: Option B

Explanation:

No answer description available for this question.

Read More In fed-batch fermentation, mass of substrate utilized is calculated using the relationship
Agitation And Aeration | Biochemical Engineering

In the bubble boundary layer, oxygen concentration can be determined by measuring

Question: In the bubble boundary layer, oxygen concentration can be determined by measuring
[A].

the steady state oxygen concentration in a mixed aerated reactor before inoculation
[B].
the steady state oxygen concentration in a mixed aerated reactor after inoculation
[C].
the steady state oxygen concentration in the boundary layer using a micro-probe
[D].
volume of oxygen supplied

Answer: Option A

Explanation:

No answer description available for this question.

Read More In the bubble boundary layer, oxygen concentration can be determined by measuring
Biochemical Engineering | Sterilization

The relationship between the del factor, temperature and time is given as

Question: The relationship between the del factor, temperature and time is given as
[A].

Δ = A.t. e-E/RT
[B].
Δ = 1/(A.t. e-E/RT)
[C].
Δ = A.t. eE/RT
[D].
Δ = A.t.T

Answer: Option A

Explanation:

No answer description available for this question.

Read More The relationship between the del factor, temperature and time is given as

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