TLS Online TPP Program

#Question id: 14734

#Section 2: General Biology

Among the following which bacteria shows corkscrew movement?

1. Treponema pallidum

2. Leptospira

3. Borrelia burgdorferi

4. Brachyspira pilosicoli

Which among the following combination is correct?

TLS Online TPP Program

#Question id: 5847

#Section 3: Genetics, Cellular and Molecular Biology

A Holliday structure is a(n)

TLS Online TPP Program

#Question id: 136

#Section 2: General Biology

The amino acids in polypeptide chains which contain sulfur (S) are

TLS Online TPP Program

#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, K_s = 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

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TLS Online TPP Program

#Question id: 15505

#Section 4: Fundamentals of Biological Engineering

The empirical formula for biomass of an unknown organism is CH_1.8O_0.5N_0.2. To grow this organism, ethanol (C2H5OH) and ammonia are used as carbon and nitrogen

sources, respectively. Assume no product formation other than biomass. To produce 1 mol of biomass from 1 mol of ethanol, the number of moles of oxygen required will be