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GATE 2022 BT – Question 57

Fundamentals of Biological Engineering · Bioreaction Engineering: Kinetics of cell growth, substrate utilization and product formation, structured and unstructured models · 2 marks · Numerical answer

The diagram depicts production of B from A in a cell. Subscript i denotes intracellular metabolites and $r_j$ is flux in g/(g dry mass h). At pseudo-steady state $r_1=4,r_3=1,r_6=1$. Transport flux $r_4$ is ___________.

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Correct answer: 2

Explanation

At steady state $r_2=r_1-r_3=3$ and $r_4=r_2-r_6=2$.