#Question id: 14305
#Section 5: Bioprocess Engineering and Process Biotechnology
Ethanol is to be used as a substrate for single-cell protein
production in a chemostat. The available equipment can achieve an oxygen
transfer rate of 10 g O2/l of liquid per hour. Assume the kinetics
of cell growth on ethanol is of the Monod type, with µm = 0.5 h–1, Ks
= 30 mg/l, YX/S = 0.5 cells/g ethanol, and YO2/S = 2 g O2/g EtOH. We wish to
operate the chemostat with an ethanol concentration in the feed of 22 g/L. We
also wish to maximize the biomass productivity and minimize the loss of unused
ethanol in the effluent. Determine the required dilution rate
#Question id: 3891
#Section 3: Genetics, Cellular and Molecular Biology
Protein amino acid side chains can hydrogen bond in the major groove of DNA, and discriminate between each of the four possible base pairs. In which one of the following groups of amino acids can all three members potentially be used in such DNA-protein recognition?
#Question id: 10133
#Section 2: General Biology
The PSI reaction center complex is a large multi-subunit complex in which the antenna chlorophylls are associated with the reaction center Components of the PSI reaction center are organized around as follows choose the incorrect one;
#Question id: 14485
#Section 1: Engineering Mathematics
#Question id: 15727
#Section 6: Plant, Animal and Microbial Biotechnology