Biochemical Engineering | Fermentation Reactors

The concentration of biomass in a continuous stirred tank reactor is 20 g dry weight per litre. What would be the concentration of biomass in the effluent?

Byadmin July 20, 2022

Question: The concentration of biomass in a continuous stirred tank reactor is 20 g dry weight per litre. What would be the concentration of biomass in the effluent?
[A].

Greater than 20 g dry weight per litre

[B].

Approximately 20 g dry weight per litre

[C].

Lesser than 20 g dry weight per litre

[D].

More than 30 g dry weight per litre

Answer: Option B

Explanation:

No answer description available for this question.

Biochemical Engineering | Water Treatment

When temporary hard water is boiled, one of the substances formed is

Question: When temporary hard water is boiled, one of the substances formed is
[A].

calcium bicarbonate
[B].
calcium sulfate
[C].
hydrogen chloride
[D].
carbon dioxide

Answer: Option D

Explanation:

No answer description available for this question.

Read More When temporary hard water is boiled, one of the substances formed is
Biochemical Engineering | Enzymes And Kinetics

Non-competitive inhibitor of an enzyme catalyzed reaction

Question: Non-competitive inhibitor of an enzyme catalyzed reaction
[A].

decreases Vmax
[B].
binds to Michaelis complex (ES)
[C].
both (a) and (b)
[D].
can actually increase reaction velocity in rare cases

Answer: Option C

Explanation:

No answer description available for this question.

Read More Non-competitive inhibitor of an enzyme catalyzed reaction
Biochemical Engineering | Enzymes And Kinetics

The enzyme inhibition can occur by

Question: The enzyme inhibition can occur by
[A].

reversible inhibitors
[B].
irreversible inhibitors
[C].
Both (a) and (b)
[D].
None of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More The enzyme inhibition can occur by
Biochemical Engineering | Sterilization

The collection efficiency by impaction increases with

Question: The collection efficiency by impaction increases with
[A].

increasing particle diameter
[B].
increasing air flow velocity
[C].
both (a) and (b)
[D].
increasing particle size

Answer: Option C

Explanation:

No answer description available for this question.

Read More The collection efficiency by impaction increases with
Biochemical Engineering | Fermentation Kinetics

Which of the following is incorrect?

Question: Which of the following is incorrect?
[A].

The mechanical agitation and aeration are effective for suspension of cells
[B].
The mechanical agitation and aeration are effective for mixing the medium
[C].
STF can’t be used for high viscosity medium
[D].
The mechanical agitation and aeration are effective for oxygenation

Answer: Option C

Explanation:

No answer description available for this question.

Read More Which of the following is incorrect?
Biochemical Engineering | Fermentation Reactors

Which of the following would be correct concerning the concentration of biomass (X). growth limiting substrate (S) and product (P) in a chemostat when the cells have been washed out?

Question: Which of the following would be correct concerning the concentration of biomass (X). growth limiting substrate (S) and product (P) in a chemostat when the cells have been washed out?
[A].

X,S and P will be zero
[B].
X,S and P can not be predicted for the above condition
[C].
X and P will be zero while S is equal to the substrate concentration in feed
[D].
None of the above

Answer: Option C

Explanation:

No answer description available for this question.

Read More Which of the following would be correct concerning the concentration of biomass (X). growth limiting substrate (S) and product (P) in a chemostat when the cells have been washed out?

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