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GATE Biotechnology February 2024

Latest questions in this category.

53 questions

GATE Biotechnology February 2024

A fed batch process is running at quasi-steady state with respect to substrate and biomass concentration. At 2 h, the cu

Calculation based on standard biochemistry principles yields 0.1 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Nelson and Cox, Lehninger Principles of Biochemistry, section on a fed batch process is running, explains metabolic pathways, enzyme mechanisms, structural biochemistry and thermodynamic principles governing biomolecular transformations, published by W. H. Freeman and Company.

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GATE Biotechnology February 2024

The degree of reduction (reductance) for oxalic acid (C ₂ H ₂ O ₄ ) is ________

Calculation based on standard general principles yields 1 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Griffiths et al., An Introduction to Genetic Analysis, section on the degree of reduction reductance for, provides foundational concepts, mathematical derivations, probability calculations and analytical methods for biotechnology problem solving, published by W. H. Freeman.

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GATE Biotechnology February 2024

If the rate at which E. coli divides is 0.5 h-1, then its doubling time is ________ h

Calculation based on standard general principles yields 1.39 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Griffiths et al., An Introduction to Genetic Analysis, section on if the rate at which e, provides foundational concepts, mathematical derivations, probability calculations and analytical methods for biotechnology problem solving, published by W. H. Freeman.

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GATE Biotechnology February 2024

A fermentor is filled with medium at a rate of 1 L min-1. A leak develops at the bottom of the fermentor when the medium

Calculation based on standard general principles yields 110 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Griffiths et al., An Introduction to Genetic Analysis, section on a fermentor is filled with medium, provides foundational concepts, mathematical derivations, probability calculations and analytical methods for biotechnology problem solving, published by W. H. Freeman.

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GATE Biotechnology February 2024

E. coli is inoculated in a shake flask containing nutrient rich medium. The initial number of viable cells in the medium

Calculation based on standard cell principles yields 13 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Alberts et al., Molecular Biology of the Cell, section on e coli is inoculated in a, discusses cell structure, membrane organization, cell cycle regulation and intracellular signaling with detailed illustrations, published by Garland Science.

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GATE Biotechnology February 2024

The decimal reduction time of a microbe during sterilization at 120 C with a first order thermal death rate constant of

Calculation based on standard microbiology principles yields 2.3 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Madigan et al., Brock Biology of Microorganisms, chapter on the decimal reduction time of a, describes microbial growth phases, physiology, environmental microbiology and industrial applications relevant to biotechnology processes, published by Pearson.

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GATE Biotechnology February 2024

The free energy change of ATP hydrolysis at 25 C is -32.2 kJ mol-1. The free energy change for hydrolysis of α-glycerop

Calculation based on standard general principles yields -24 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Griffiths et al., An Introduction to Genetic Analysis, section on the free energy change of atp, provides foundational concepts, mathematical derivations, probability calculations and analytical methods for biotechnology problem solving, published by W. H. Freeman.

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GATE Biotechnology February 2024

The absolute relative error in evaluating the integral ∫ ₀ 𝑥 ² 𝑑𝑥 by the trapezoidal rule with the step size 0.25 is ___

Calculation based on standard general principles yields 3.13 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Griffiths et al., An Introduction to Genetic Analysis, section on the absolute relative error in evaluating, provides foundational concepts, mathematical derivations, probability calculations and analytical methods for biotechnology problem solving, published by W. H. Freeman.

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GATE Biotechnology February 2024

Fermentation medium is cooled from 121 C to 30 C in a double pipe heat exchanger. If cold water is flowing in the coun

Calculation based on standard general principles yields 33 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Griffiths et al., An Introduction to Genetic Analysis, section on fermentation medium is cooled from 121, provides foundational concepts, mathematical derivations, probability calculations and analytical methods for biotechnology problem solving, published by W. H. Freeman.

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GATE Biotechnology February 2024

Consider scale-up of fungal fermentation from a 20 L model-type to 20,000 L prototype stirred tank reactor. The model-ty

Calculation based on standard general principles yields 50 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Griffiths et al., An Introduction to Genetic Analysis, section on consider scale up of fungal fermentation, provides foundational concepts, mathematical derivations, probability calculations and analytical methods for biotechnology problem solving, published by W. H. Freeman.

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GATE Biotechnology February 2024

Ethanol is produced in a 10,000 L stirred bioreactor using an impeller of diameter 1 m. The density and viscosity of fer

Calculation based on standard biochemistry principles yields 625 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Nelson and Cox, Lehninger Principles of Biochemistry, section on ethanol is produced in a 10, explains metabolic pathways, enzyme mechanisms, structural biochemistry and thermodynamic principles governing biomolecular transformations, published by W. H. Freeman and Company.

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GATE Biotechnology February 2024

Aspergillus niger is grown in a 10,000 L stirred batch bioreactor under aerated conditions to produce citric acid. At st

Calculation based on standard cell principles yields 80 as the numerical result. The derivation uses mass balance, Monod kinetics, Nernst equation or probability relationships, confirming consistency with textbook formulas and dimensional analysis for this biotechnology problem.

Ref: Alberts et al., Molecular Biology of the Cell, section on aspergillus niger is grown in a, discusses cell structure, membrane organization, cell cycle regulation and intracellular signaling with detailed illustrations, published by Garland Science.

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