Biochemical Engineering | Enzymes And Kinetics

In the steady state the material balance equation for any component of a system is

Byadmin July 20, 2022

Question: In the steady state the material balance equation for any component of a system is
[A].

rate of addition + rate of removal – rate of formation = 0

[B].

rate of addition – rate of removal + rate of formation = 0

[C].

rate of addition + rate of removal + rate of formation = 0

[D].

none of the above

Answer: Option B

Explanation:

No answer description available for this question.

Biochemical Engineering | Fermentation Kinetics

In a batch reactor specific growth rate

Question: In a batch reactor specific growth rate
[A].

remains constant throughout the process
[B].
increases exponentially
[C].
changes during the fermentation
[D].
is highest during the stationary phase

Answer: Option C

Explanation:

No answer description available for this question.

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Biochemical Engineering | Fluid Flow

A Newtonian fluid is one in which the viscosity

Question: A Newtonian fluid is one in which the viscosity
[A].

is constant regardless of the stirrer speed or mixing time
[B].
changes during mixing but returns to its original state after mixing
[C].
increases with increasing stirrer speed
[D].
decreases with increasing stirrer speed

Answer: Option A

Explanation:

No answer description available for this question.

Read More A Newtonian fluid is one in which the viscosity
Biochemical Engineering | Fermentation Kinetics

During the lag phase

Question: During the lag phase
[A].

cells just start growing
[B].
cells synthesize new proteins and membrane components
[C].
cells produce antibiotics to kill competing organisms
[D].
cells simply grow slowly

Answer: Option B

Explanation:

No answer description available for this question.

Read More During the lag phase
Biochemical Engineering | Fermentation Kinetics

The optical density sometimes drops during the lag phase because

Question: The optical density sometimes drops during the lag phase because
[A].

cells tend to grow without dividing leading to a decrease in the surface area to volume ratio
[B].
of fast cell growth causing them to fill up with DNA
[C].
cells swell up with water
[D].
cells swell up with RNA

Answer: Option A

Explanation:

No answer description available for this question.

Read More The optical density sometimes drops during the lag phase because
Biochemical Engineering | Fluid Flow

In animal cell bioreactor, bubble damage can be minimized by

Question: In animal cell bioreactor, bubble damage can be minimized by
[A].

the addition of a shear protectorant
[B].
using a bubble free oxygen delivery system
[C].
headspace aeration
[D].
all of the above

Answer: Option D

Explanation:

No answer description available for this question.

Read More In animal cell bioreactor, bubble damage can be minimized by
Agitation And Aeration | Biochemical Engineering

A cylindrical reactor fitted with Rushton Turbine has a liquid volume of 100,000 litres. It has an aspect ratio (the ratio of the channel height to the width) of 2:1. The diameter of the impeller should be approximately:

Question: A cylindrical reactor fitted with Rushton Turbine has a liquid volume of 100,000 litres. It has an aspect ratio (the ratio of the channel height to the width) of 2:1. The diameter of the impeller should be approximately:
[A].

1.3 m
[B].
3.3 m
[C].
5.3 m
[D].
7.3 m

Answer: Option A

Explanation:

No answer description available for this question.

Read More A cylindrical reactor fitted with Rushton Turbine has a liquid volume of 100,000 litres. It has an aspect ratio (the ratio of the channel height to the width) of 2:1. The diameter of the impeller should be approximately:

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