For a given system, Accumulation = Generation – Consumption, where both the terms are distinct and non-zero, then the system is

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#Question id: 14566

#Section 2: General Biology

A pure culture in exponential growth phase has a bacterial concentration of 6.4 x 10⁸ cells/ml. If the bacterium has a generation time of 1 h, how long ago was the cell

concentration 8.0 x 10⁷ cells/ml?

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#Question id: 580

#Section 2: General Biology

In a first order chemical reaction, the velocity of the reaction is proportional to the ________, while in a zero order reaction, the velocity of the reaction is proportional to the ________.

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#Question id: 27597

#Section 5: Bioprocess Engineering and Process Biotechnology

What is the mass in kg of H2O in feed F and NaOH in product?

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#Question id: 5266

#Section 3: Genetics, Cellular and Molecular Biology

In conjugation the donor cell is recognized by the presence of

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#Question id: 28116

#Section 5: Bioprocess Engineering and Process Biotechnology

A baffled fermenter with tank diameter and liquid height equal to 1.2 m is stirred using a six-blade downward-pumping impeller. The impeller diameter is 0.42 m and the stirrer speed is 1.5 s. The viscosity of the fermentation broth is 10^-2 Pa s and the density is 1000 kg m-³. Estimate the mixing time under nonaerated conditions.