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Biochemical Engineering - Fermentation Reactors

Exercise : Fermentation Reactors - Section 2
26.
Saccharomyces cerevisiae when grown in high glucose concentration medium, the cells activity depends on which of the following?
High concentration of dissolved oxygen
Low concentration of dissolved oxygen
No effect of dissolved oxygen
High concentration of dissolved oxygen and sodium salts
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
Continuous culture has an advantage over to a batch cultures as
continuous reactors do not need to be shut down and cleaned as regularly as a batch reactor
most downstream and upstream processes are continuous in nature and thus the operation of continuous bioreactor can be better integrated into the overall manufacturing process
cells can be maintained at a constant physiological state simply by setting the dilution rate
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
In the batch-fed mode, substrate will be added
only at the beginning of the fermentation process
periodically throughout the fermentation process
only at the end of the fermentation process
substrate is never added
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
When Escherichia coli grow in a well aerated medium, which of the following will occur?
Fructose di-phosphate accumulation inside the cells leading to cell respiration
Fructose di-phosphate accumulation inside the cells leading to fermentation
Fructose di-phosphate will accumulate regardless of the medium composition
Fructose di-phosphate will accumulate inside the cells leading to anaerobic respiration
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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