Fermentation Kinetics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Fermentation Kinetics, a fundamental topic in the field of Biochemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Fermentation Kinetics MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Fermentation Kinetics mcq questions that explore various aspects of Fermentation Kinetics problems. Each MCQ is crafted to challenge your understanding of Fermentation Kinetics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Biochemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Fermentation Kinetics MCQs are your pathway to success in mastering this essential Biochemical Engineering topic.

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Fermentation Kinetics MCQs | Page 4 of 8

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Q31.
The function of the disengagement zone in an airlift fermenter is to

a.

prevent COโ‚‚ rich bubbles from entering the downcomer

b.

reduce the velocity of the bubbles

c.

reduce liquid loss as aerosols

d.

all of the above

Discuss
Answer: (d).all of the above
Q32.
Stationary phase is described as

a.

no further increase in the cell population after a maximum value

b.

deceleration of growth and division rate after the growth rate reaches a maximum

c.

acceleration of growth and division rate after the growth rate reaches a maximum

d.

deceleration of growth and division rate after the growth rate reaches a minimum

Discuss
Answer: (a).no further increase in the cell population after a maximum value
Q33.
In the accelerated phase, cell starts to

a.

increase and the division rate increases to reach a maximum

b.

decrease and the division rate increases to reach a maximum

c.

increase and the division rate decreases to reach a maximum

d.

increase and the division rate increases to reach a minimum

Discuss
Answer: (a).increase and the division rate increases to reach a maximum
Q34.
The monod model predicts that the specific growth rate

a.

will increase with the concentration of the growth limiting substrate until it reaches a maximum value

b.

will decrease with the concentration of the growth limiting substrate

c.

will increase with the concentration of the growth limiting substrate

d.

does not depend on growth limiting substrate

Discuss
Answer: (a).will increase with the concentration of the growth limiting substrate until it reaches a maximum value
Q35.
A mixed fermentation is one, which produces

a.

both alcohol and carbon dioxide

b.

both acid and carbon dioxide

c.

both acid and alcohol

d.

several different kinds of acid

Discuss
Answer: (c).both acid and alcohol
Q36.
Which of the following is correct for the prediction of time requirement in a batch fermenter?

a.

Carrying out experiments

b.

Mathematical modelling of the fermentation process

c.

Both (a) and (b)

d.

It is impossible to predict the time required for fermentation

Discuss
Answer: (c).Both (a) and (b)
Q37.
In an airlift bioreactor, the spent gases released from the liquid are called

a.

downcomer

b.

disengagement zone

c.

air riser

d.

flotsam

Discuss
Answer: (b).disengagement zone
Q38.
The contents in jet loop reactor are mixed through

a.

compressed air

b.

a mechanical agitator

c.

external pumping

d.

any of these

Discuss
Answer: (c).external pumping
Q39.
The specific growth rate (ฮผ) is defined as

a.

the concentration of biomass in the reactor

b.

rate of increase of total biomass in a reactor

c.

the rate of individual cells division or increase in their biomass

d.

the rate of cell death

Discuss
Answer: (c).the rate of individual cells division or increase in their biomass
Q40.
The number of baffles in a standard stirred tank bioreactor is

a.

8

b.

6

c.

4

d.

2

Discuss
Answer: (c).4
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