Biochemical Engineering | Immobilized Enzyme

Which of the following is not a physical method of immobilization?

Byadmin July 20, 2022

Question: Which of the following is not a physical method of immobilization?
[A].

Adsorption

[B].

Entrapment

[C].

Micro encapsulation

[D].

None of these

Answer: Option D

Explanation:

No answer description available for this question.

Biochemical Engineering | Sterilization

Analogus to the molecular diffusion, the x-directional flux of microorganisms suspended in a medium due to the axial mixing can be represented as (where Jn is flux component ‘n’, cn is concentration of’n’)

Question: Analogus to the molecular diffusion, the x-directional flux of microorganisms suspended in a medium due to the axial mixing can be represented as (where Jn is flux component ‘n’, cn is concentration of’n’)
[A].
Jn = -dcn/dx
[B].
Jn = dcn/dx
[C].
Jn = -D dcn/dx
[D].
Jn = D dcn/dx

Answer: Option C

Explanation:

No answer description available for this question.

Read More Analogus to the molecular diffusion, the x-directional flux of microorganisms suspended in a medium due to the axial mixing can be represented as (where Jn is flux component ‘n’, cn is concentration of’n’)
Biochemical Engineering | Fluid Flow

Water is a

Question: Water is a
[A].
newtonian fluid
[B].
pseudoplastic
[C].
dilatant
[D].
rheopectic

Answer: Option A

Explanation:

No answer description available for this question.

Read More Water is a
Agitation And Aeration | Biochemical Engineering

The maximum solubility of the alkane in the medium is 5 ppm. If the actual dissolved concentration of the alkane in the medium is 1 ppm. what conclusion may be drawn?

Question: The maximum solubility of the alkane in the medium is 5 ppm. If the actual dissolved concentration of the alkane in the medium is 1 ppm. what conclusion may be drawn?
[A].
The growth rate is limited by the rate of mass transfer of the alkane into the fermentation medium
[B].
The growth rate is limited by the intrinsic kinetic properties of the cells and not by mass transfer
[C].
The growth rate is neither mass transfer nor kinetically limited
[D].
No conclusion on the growth rate can be withdrawn

Answer: Option D

Explanation:

No answer description available for this question.

Read More The maximum solubility of the alkane in the medium is 5 ppm. If the actual dissolved concentration of the alkane in the medium is 1 ppm. what conclusion may be drawn?
Biochemical Engineering | Downstream Processing

A system which require less solvent and produces a more concentrated extract phase, is desired with a

Question: A system which require less solvent and produces a more concentrated extract phase, is desired with a
[A].
large distribution coefficients
[B].
small distribution coefficients
[C].
very small distribution coefficients
[D].
constant distribution coefficients

Answer: Option A

Explanation:

No answer description available for this question.

Read More A system which require less solvent and produces a more concentrated extract phase, is desired with a
Biochemical Engineering | Sterilization

The interception efficiency can be expressed as (where dp is the particle diameter and Dc cylindrical collection diameter)

Question: The interception efficiency can be expressed as (where dp is the particle diameter and Dc cylindrical collection diameter)
[A].
dp/Dc
[B].
dp x Dc
[C].
dp/Dc x 100
[D].
dpDc/100

Answer: Option A

Explanation:

No answer description available for this question.

Read More The interception efficiency can be expressed as (where dp is the particle diameter and Dc cylindrical collection diameter)
Biochemical Engineering | Immobilized Enzyme

If Damkohler number, NDa >>1, the reaction rate is much greater than the mass transfer rate and the overall reaction is controlled by the rate of mass transfer. In this case, the enzyme reaction can be described as (where Csb and Cs are the substrate concentration in bulk of solution and at the immobilized enzyme surface respectively. ks mass transfer coefficient, and a is the surface area of an immobilized enzyme particles)

Question: If Damkohler number, NDa >>1, the reaction rate is much greater than the mass transfer rate and the overall reaction is controlled by the rate of mass transfer. In this case, the enzyme reaction can be described as (where Csb and Cs are the substrate concentration in bulk of solution and at the immobilized enzyme surface respectively. ks mass transfer coefficient, and a is the surface area of an immobilized enzyme particles)
[A].
rp = ksa(Csb-Cs)
[B].
rp = ksaCsb
[C].
rp = ksaCs
[D].
rp = ksa(Csb+Cs)

Answer: Option B

Explanation:

No answer description available for this question.

Read More If Damkohler number, NDa >>1, the reaction rate is much greater than the mass transfer rate and the overall reaction is controlled by the rate of mass transfer. In this case, the enzyme reaction can be described as (where Csb and Cs are the substrate concentration in bulk of solution and at the immobilized enzyme surface respectively. ks mass transfer coefficient, and a is the surface area of an immobilized enzyme particles)

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