Stoichiometric equations are used to represent growth of microorganisms provided a ' molecular formula' for the cells is available. The molecular formula for biomass is obtained by measuring the amounts of C, N, H, O and other elements in cells. For a particular bacterial strain, the molecular formula was determined to be C4.4H7.30 1.2N0.86 . These bacteria are grown under aerobic conditions with hexadecane (C16H34) as substrate. The reaction equation describing growth is:

                                    

Assuming 100% conversion, what is the yield of cells from oxygen in g g-l?

TLS Online TPP Program

#Question id: 18968

#Section 4: Fundamentals of Biological Engineering

A continuous process is set up for treatment of wastewater. Each day, 10³ kg cellulose and 105 kg bacteria enter in the feed stream, while 10² kg cellulose and 1.5 x 10² kg bacteria leave in the effluent. The rate of cellulose digestion by the bacteria is 8 x 10² kg d^-1. The rate of bacterial growth is 4x 10² kg d^-l; the rate of cell death by lysis is 6 x 10² kg d^-1. Write balances for cellulose and bacteria in the system.

TLS Online TPP Program

#Question id: 19021

#Section 4: Fundamentals of Biological Engineering

2SO₂+O₂ → 2SO₃. What is the stoichiometric ratio of SO₂ to SO₃?

TLS Online TPP Program

#Question id: 19022

#Section 4: Fundamentals of Biological Engineering

Calculate the degree of reduction for ethanol, where the degree of reduction of C=4, H=1, O=-2.

TLS Online TPP Program

#Question id: 19023

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

Which one of the following tools can reliably establish an evolutionary link between two proteins and align them even if they share very low degree of sequence similarity? 

TLS Online TPP Program

#Question id: 19024

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

Computational tools that are used for the alignment of multiple sequences-

TLS Online TPP Program

#Question id: 19046

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

Which of the following techniques is used to study the three-dimensional structure of a molecule?