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Biochemical Engineering - Fermentation Kinetics

Exercise : Fermentation Kinetics - Section 2
6.
The bubble column fermenter is usually limited to
aerobic fermentations
anaerobic fermentations
Both (a) and (b)
facultative fermentation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
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.
continuous
batch
fed-batch
semi continuous
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
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
Cn= Cn0 exp[μ (t - t0)]
Cn0 = Cn exp[μ (t - t0)]
Cn/Cn0 =(1/μ)exp(t-t0)
Cn0 / Cn = (1/μ)exp(t-t0)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
The diameter of the baffles in a standard stirred tank bioreactor ranges from
1/10th - 1/12th of the tank diameter
1/3rd - 1/4th of the tank diameter
1/15th - 1/20th of the tank diameter
1/20th - 1/25th of the tank diameter
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
During the log phase cell numbers increase exponentially
because cells produce enzymes
because cells do not have cell membranes
because cells are autocatalysts
because the rate of cell division increases exponentially
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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