A. aceti converts alcohol to acetic acid according to the stoichiometric relation

C₂H₅OH + O₂ 🡪CH₃COOH + H₂O

In a vigorously agitated and aerated reactor containing 20 g/l ethanol, the organism produces 16 g/l acetic acid and 2 g/l was the residual ethanol concentration. What are the theoretical and observed yields of acetic acid expressed in g/g ethanol?

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#Question id: 1119

#Section 3: Genetics, Cellular and Molecular Biology

Phosphorylation cascades involving a series of protein kinases are useful for cellular signal transduction because they:

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#Question id: 3545

#Section 3: Genetics, Cellular and Molecular Biology

Consider the accompanying pedigree of a rare autosomal recessive disease, PKU. Male with PKU marry with normal female whose father is PKU. What is probability of child affected with PKU?

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#Question id: 3715

#Section 3: Genetics, Cellular and Molecular Biology

DNA polymerase III requires a/an ________ for synthesis of DNA to occur.

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#Question id: 24084

#Section 5: Bioprocess Engineering and Process Biotechnology

The first-order reaction A → B, has k = 5.67 s^–1. If [A]₀ = 0.500 M, how long will it take [A] = 0.124 M?

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#Question id: 14453

#Section 2: General Biology

From the following elements which is used in trace amount only in nutrient medium?