Practice Questions

TLS Online TPP Program

#Question id: 14320

Both Saccharomyces cerevisiae yeast and Zymomonas mobilis bacteria produce ethanol from glucose under anaerobic conditions without external electron acceptors. The biomass yield from glucose is 0.11 g g-1 for yeast and 0.05 g g-I for Z. mobilis. In both cases the nitrogen source is NH 3. Both cell compositions are represented by the formula CH 1.800.5N0.2. What is the yield of ethanol from glucose by Zymomonas mobilis bacteria?

#Section 5: Bioprocess Engineering and Process Biotechnology

1.72gmol gmol^-1
1.87gmol gmol^-1
1.90gmol gmol^-1
1.50gmol gmol^-1

More Questions

TLS Online TPP Program

#Question id: 14702

#Section 1: Engineering Mathematics

The area bounded by curve x² = 4y and straight line x = 4y - 2 is

TLS Online TPP Program

#Question id: 12902

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

An extension of microarray technology may also be used to analyze tissue sections,this process is known as_____

TLS Online TPP Program

#Question id: 3861

#Section 3: Genetics, Cellular and Molecular Biology

_ are sequences that are removed from primary transcripts, and _ are sequences that remain present in mature mRNA molecules.

TLS Online TPP Program

#Question id: 27198

#Section 5: Bioprocess Engineering and Process Biotechnology

If the half life of a first order reaction in A is 2 min, how long will it take A to reach

(a) 25 percent of its initial concentration

TLS Online TPP Program

#Question id: 14301

#Section 5: Bioprocess Engineering and Process Biotechnology

Pseudomonas sp. has a mass doubling time of 2.4 h when grown on acetate. The saturation constant using this substrate is 1.3 g/l (which is unusually high), and cell yield on acetate is 0.46 g cell/g acetate. If we operate a chemostat on a feed stream containing 38 g/l acetate, find the Cell concentration when the dilution rate is one-half of the maximum?

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