The structures present in the hay infusions used in experiments on spontaneous generation that made them difficult to sterilize are

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#Question id: 27190

#Section 5: Bioprocess Engineering and Process Biotechnology

A substrate is consumed in a zero order reaction such that the concentration falls from 40 g/l to 20 g/l in 4 h. How long will it take the substrate to fall from 20 g/l to 2 g/l:

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#Question id: 410

#Section 2: General Biology

For the reaction A -> B, the Keq' is 10^4.  If a reaction mixture originally contains 1 mmol of A and no B, which one of the following must be true?

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#Question id: 243

#Section 2: General Biology

Deoxythymidine is a ________ found mainly in DNA.

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#Question id: 14172

#Section 4: Fundamentals of Biological Engineering

The growth of baker’s yeast (S. cerevisiae) on glucose may be simply described by the following equation:

In a batch reactor of volume 105 l, the final desired yeast concentration is 50 gdw/l. Using the above reaction stoichiometry. Determine the yield coefficients YX/S (biomass/glucose)?

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#Question id: 14677

#Section 4: Fundamentals of Biological Engineering

The volumetric flow rate of carbon tetrachloride (CCI4) in a pipe is 50 cm³ min^-1. The density of CCI4 is 1.6 g cm^-3.

(i) What is the mass flow rate of CCI₄?

(ii) What is the molar flow rate of CCI₄ ?