Biochemical Engineering | Fermentation Kinetics

Bubble column reactor has

Byadmin July 20, 2022

Question: Bubble column reactor has
[A].

large height to diameter ratio

[B].

small height to diameter ratio

[C].

large diameter to height ratio

[D].

small diameter to height ratio

Answer: Option A

Explanation:

No answer description available for this question.

Agitation And Aeration | Biochemical Engineering

In a two-phase system where the continuous phase remains in place, the gas hold up can be expressed as (where Vs and Vt are the superficial gas velocity and bubble rise velocity)

Question: In a two-phase system where the continuous phase remains in place, the gas hold up can be expressed as (where Vs and Vt are the superficial gas velocity and bubble rise velocity)
[A].

H = Vs/(Vs-Vt)
[B].
H = Vs/(Vs+ Vt)
[C].
H = Vs/(Vs.Vt)
[D].
H = (Vs+Vt)/Vs

Answer: Option B

Explanation:

No answer description available for this question.

Read More In a two-phase system where the continuous phase remains in place, the gas hold up can be expressed as (where Vs and Vt are the superficial gas velocity and bubble rise velocity)
Biochemical Engineering | Fermentation Reactors

When Escherichia coli grow in a well aerated medium, which of the following will occur?

Question: When Escherichia coli grow in a well aerated medium, which of the following will occur?
[A].

Fructose di-phosphate accumulation inside the cells leading to cell respiration
[B].
Fructose di-phosphate accumulation inside the cells leading to fermentation
[C].
Fructose di-phosphate will accumulate regardless of the medium composition
[D].
Fructose di-phosphate will accumulate inside the cells leading to anaerobic respiration

Answer: Option B

Explanation:

No answer description available for this question.

Read More When Escherichia coli grow in a well aerated medium, which of the following will occur?
Biochemical Engineering | Enzymes And Kinetics

Which of the following statement(s) regarding enzymes, is/are false?

Question: Which of the following statement(s) regarding enzymes, is/are false?
[A].

Enzymes are always proteins that function as catalysts
[B].
Enzymes provide activation energy for reactions
[C].
Enzyme activity can be regulated
[D].
Enzymes may be used many times for a specific reaction

Answer: Option B

Explanation:

No answer description available for this question.

Read More Which of the following statement(s) regarding enzymes, is/are false?
Biochemical Engineering | Water Treatment

The activated sludge process consists of returning a portion of the clarifier

Question: The activated sludge process consists of returning a portion of the clarifier
[A].

effluent water entering the reactor
[B].
influent water coming out of the reactor
[C].
influent water entering the reactor
[D].
effluent water coming out of the reactor

Answer: Option C

Explanation:

No answer description available for this question.

Read More The activated sludge process consists of returning a portion of the clarifier
Biochemical Engineering | Water Treatment

Lagoons may be characterized as

Question: Lagoons may be characterized as
[A].

anaerobic
[B].
facultative
[C].
aerated
[D].
all of these

Answer: Option D

Explanation:

No answer description available for this question.

Read More Lagoons may be characterized as
Biochemical Engineering | Downstream Processing

Which of the following is considered as a pretreatment to the biological feeds?

Question: Which of the following is considered as a pretreatment to the biological feeds?
[A].

Heating to denature the proteins
[B].
Addition of filter aids to increase the porosity
[C].
Addition of electrolytes
[D].
All of the above

Answer: Option D

Explanation:

No answer description available for this question.

Read More Which of the following is considered as a pretreatment to the biological feeds?

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