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Biochemical Engineering

Bacterial growth curve is obtained by plotting

Question: Bacterial growth curve is obtained by plotting
[A].

number of cells versus time

[B].

number fo spores versus time

[C].

log of number of cells versus time

[D].

log of number of cells survived versus time

Answer: Option C

Explanation:

No answer description available for this question.

Bacterial growth curve is obtained by plotting Read More »

Biochemical Engineering, Fermentation Kinetics

Population doubling time, td can be expressed as (where μ is the specific growth rate.)

Question: Population doubling time, td can be expressed as (where μ is the specific growth rate.)
[A].

log2/μ

[B].

ln2/μ

[C].

μ/ln2

[D].

μ/log2

Answer: Option B

Explanation:

No answer description available for this question.

Population doubling time, td can be expressed as (where μ is the specific growth rate.) Read More »

Biochemical Engineering, Fermentation Kinetics

Wash out in steady state fermentation occurs when

Question: Wash out in steady state fermentation occurs when
[A].

dilution rate is less than maximum specific growth rate

[B].

dilution rate is higher than the maximum specific growth rate

[C].

cell concentration reaches the maximum

[D].

specific growth rate is maximum

Answer: Option B

Explanation:

No answer description available for this question.

Wash out in steady state fermentation occurs when Read More »

Biochemical Engineering, Fermentation Kinetics

A functional relationship between the specific growth rate and essential compounds concentration was proposed by Monod in

Question: 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

Answer: Option C

Explanation:

No answer description available for this question.

A functional relationship between the specific growth rate and essential compounds concentration was proposed by Monod in Read More »

Biochemical Engineering, Fermentation Kinetics

The dilution rate, D is defined as(where F = volumetric flow rate, VR = total volume of culture in the reactor and μ specific growth rate)

Question: The dilution rate, D is defined as(where F = volumetric flow rate, VR = total volume of culture in the reactor and μ specific growth rate)
[A].

F/VR

[B].

VR/F

[C].

μ/F

[D].

F/μ

Answer: Option A

Explanation:

No answer description available for this question.

The dilution rate, D is defined as(where F = volumetric flow rate, VR = total volume of culture in the reactor and μ specific growth rate) Read More »

Biochemical Engineering, Fermentation Kinetics

An open system in which the growth rate is maintained by adding a nutrient (present in limiting quantities) at the same rate as that medium containing micro-organisms is removed is called

Question: An open system in which the growth rate is maintained by adding a nutrient (present in limiting quantities) at the same rate as that medium containing micro-organisms is removed is called
[A].

manostat

[B].

chemostat

[C].

turbidostat

[D].

culturostat

Answer: Option B

Explanation:

No answer description available for this question.

An open system in which the growth rate is maintained by adding a nutrient (present in limiting quantities) at the same rate as that medium containing micro-organisms is removed is called Read More »

Biochemical Engineering, Fermentation Kinetics

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.

Question: 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

Answer: Option B

Explanation:

No answer description available for this question.

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. Read More »

Biochemical Engineering, Fermentation Kinetics