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!

So, are you ready to put your Fermentation Kinetics knowledge to the test? Let's get started with our carefully curated MCQs!

Fermentation Kinetics MCQs | Page 5 of 8

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Q41.
An internal draft tube is preferrred to an external draft tube because

a.

it is easier to clean and sterilize a reactor

b.

it is cheaper to build a reactor with an internal draft tube

c.

Both (a) and (b)

d.

none of the above

Discuss
Answer: (a).it is easier to clean and sterilize a reactor
Q42.
A functional relationship between the specific growth rate and essential compounds concentration was proposed by Monod in

a.

1958

b.

1946

c.

1942

d.

1950

Discuss
Answer: (c).1942
Q43.
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

Discuss
Answer: (a).cells tend to grow without dividing leading to a decrease in the surface area to volume ratio
Q44.
The application of just in time (JIT) manufacturing techniques in biotechnology is important because

a.

raw materials used in biotechnology are biodegradable

b.

the products of biotechnology are biodegradable

c.

it is a very competitive business

d.

all of the above

Discuss
Answer: (d).all of the above
Q45.
Residence time distribution (RTD) of a reactor is independent of

a.

micro mixing

b.

volume of reactor

c.

height of the reactor

d.

width of the reactor

Discuss
Answer: (a).micro mixing
Q46.
The bubble column fermenter is usually limited to

a.

aerobic fermentations

b.

anaerobic fermentations

c.

Both (a) and (b)

d.

facultative fermentation

Discuss
Answer: (a).aerobic fermentations
Q47.
A culture in a closed vessel to which no additional medium is added and from which no waste products are removed is called a __________ culture.

a.

continuous

b.

batch

c.

fed-batch

d.

semi continuous

Discuss
Answer: (b).batch
Q48.
If the specific growth rate, μ. is constant with time during the exponential growth period, the equation correlating bacterial number density Cn), cell number concentration with respect to time can be expressed as

a.

Cn= Cn0 exp[μ (t - t0)]

b.

Cn0 = Cn exp[μ (t - t0)]

c.

Cn/Cn0 =(1/μ)exp(t-t0)

d.

Cn0 / Cn = (1/μ)exp(t-t0)

Discuss
Answer: (a).Cn= Cn0 exp[μ (t - t0)]
Q49.
The diameter of the baffles in a standard stirred tank bioreactor ranges from

a.

1/10th - 1/12th of the tank diameter

b.

1/3rd - 1/4th of the tank diameter

c.

1/15th - 1/20th of the tank diameter

d.

1/20th - 1/25th of the tank diameter

Discuss
Answer: (a).1/10th - 1/12th of the tank diameter
Q50.
During the log phase cell numbers increase exponentially

a.

because cells produce enzymes

b.

because cells do not have cell membranes

c.

because cells are autocatalysts

d.

because the rate of cell division increases exponentially

Discuss
Answer: (c).because cells are autocatalysts
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