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.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Fermentation Kinetics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

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Fermentation Kinetics MCQs | Page 7 of 8

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Q61.
The height to diameter ratio (H/D) for the tank fermenters is

a.

<3

b.

>3

c.

<1.5

d.

>1.5

Discuss
Answer: (a).<3
Q62.
The relatively large volume (10 to 40% of total fermenter volume) of the seed culture is employed to

a.

increase the overall fermentation time

b.

increase the overall yield of biomass

c.

decrease the overall fermentation time

d.

decrease the overall yield of product

Discuss
Answer: (c).decrease the overall fermentation time
Q63.
In an airlift bioreactor, the air sparging region is called

a.

downcomer

b.

disengagement zone

c.

air riser

d.

none of these

Discuss
Answer: (c).air riser
Q64.
The air riser is located on the outside of the draft tube for the large-scale airlift bioreactors because of

a.

higher oxygen transfer rates

b.

a small sparge ring

c.

better heat transfer efficiencies

d.

all of these

Discuss
Answer: (c).better heat transfer efficiencies
Q65.
At the end of the lag phase, when growth begins, the division rate increases gradually and reaches a maximum value in the exponential growth period. This transitional period is commonly called the accelerated growth phase and is often included as a part of the

a.

lag phase

b.

stationary phase

c.

death phase

d.

exponential growth phase

Discuss
Answer: (a).lag phase
Q66.
Which of the following(s) is/are considered the limitations of the exponential growth model?

a.

Only predicts that cells grow exponentially during the log phase

b.

It does not consider factors that causes cells growth to stop or slow

c.

Predicts cell growth at a linear rate

d.

All of the above

Discuss
Answer: (b).It does not consider factors that causes cells growth to stop or slow
Q67.
To describe components of an airlift bioreactor which of the follow-ings are generally included?

a.

Disengagement zone, air riser, downcomer

b.

Flotsam, jetsam, downzone

c.

Air comer, disentanglement zone, downsizer

d.

All of the above

Discuss
Answer: (a).Disengagement zone, air riser, downcomer
Q68.
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

Discuss
Answer: (b).cells synthesize new proteins and membrane components
Q69.
Concentration of the growth limiting substrate means

a.

trace elements concentration

b.

the concentration of the substrate that controls the growth rate of the cells

c.

sugar concentration in the fermentation medium

d.

dissolved oxygen concentration

Discuss
Answer: (b).the concentration of the substrate that controls the growth rate of the cells
Q70.
Tower fermentors are used for

a.

continuous penicillin production

b.

continuous beer production

c.

production of enzymes

d.

batch production of beer

Discuss
Answer: (b).continuous beer production
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