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TLS Online TPP Program

#Question id: 146

The pH inside cells is normally near pH 7. At pH 7 which statement is true about the charges (ionization state) of the α-Carboxyl and α-Amino groups of an amino acid?

#Section 2: General Biology

  1. The α-Carboxyl group is 1- and the α-Amino group is 1+.

  2. The α-Carboxyl group is 1+ and the α-Amino group is 1-.

  3. The α-Carboxyl group is 1- and the α-Amino group is uncharged.

  4. Both groups are uncharged (not ionized) at pH 7.

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TLS Online TPP Program

#Question id: 27324

#Section 5: Bioprocess Engineering and Process Biotechnology

During a batch culture experiment, the following data was obtained

What will be the product yield (g) per gram of substrate?
TLS Online TPP Program

#Question id: 151

#Section 2: General Biology

The isoelectric point of alanine is pH = 6.15. It is mixed with proline (pHCOOH = 2.0; pHNH2= 10.6), and the mixture is placed in an electric field at pH 6.15. Which statement is true?
TLS Online TPP Program

#Question id: 19532

#Section 4: Fundamentals of Biological Engineering

A process unit involves 3 chemical components. How many mass balances can be written?
TLS Online TPP Program

#Question id: 14701

#Section 1: Engineering Mathematics

Evaluate