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: 27319

#Section 5: Bioprocess Engineering and Process Biotechnology

Which one of the following statements is FALSE. Microbial secondary metabolites are

TLS Online TPP Program

#Question id: 27320

#Section 5: Bioprocess Engineering and Process Biotechnology

Two organisms A and B with the same µmax and Yx/s are cultivated independently in batch culture. They have Ks values of 1 g.l-1 and 3 g.l-1 respectively. Given that the initial substrate concentration was 5 g/l, which of the following is TRUE after complete exhaustion of the substrate?

TLS Online TPP Program

#Question id: 27321

#Section 5: Bioprocess Engineering and Process Biotechnology

An organism exhibits Monod growth with the following growth parameters, µm= 0.6 h-1 & Ks = 4 g/l. The specific growth rate, µ, of the organism at a substrate concentration of 2 g/l would be:

TLS Online TPP Program

#Question id: 27322

#Section 5: Bioprocess Engineering and Process Biotechnology

If the maintenance coefficient (m) is significantly high, then with reduction in specific growth rate:

TLS Online TPP Program

#Question id: 27323

#Section 5: Bioprocess Engineering and Process Biotechnology

In microbial cultivation experiment with cells having significant maintenance requirements, the measured growth yield Y’ XS (G) and the true growth yield Y XS