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TLS Online TPP Program

#Question id: 2121

Which of the following membrane activities requires energy from ATP hydrolysis?

#Section 2: General Biology

  1. facilitated diffusion of chloride ions across the membrane through a chloride channel

  2. movement of Na+ ions from a lower concentration in a mammalian cell to a higher concentration in the extracellular fluid

  3. movement of glucose molecules into a bacterial cell from a medium containing a higher concentration of glucose than inside the cell

  4. movement of carbon dioxide out of a paramecium

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TLS Online TPP Program

#Question id: 14174

#Section 5: Bioprocess Engineering and Process Biotechnology

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


In a batch reactor of volume 10^5 l, the final desired yeast concentration is 50 gdw/l. Using the above reaction stoichiometry, Determine the total amount of oxygen required?

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TLS Online TPP Program

#Question id: 14175

#Section 5: Bioprocess Engineering and Process Biotechnology

The growth of S. cerevisiae on glucose under anaerobic conditions can be described by the following overall reaction

Determine the biomass yield coefficient YX/S? 
TLS Online TPP Program

#Question id: 14176

#Section 5: Bioprocess Engineering and Process Biotechnology

 The growth of S. cerevisiae on glucose under anaerobic conditions can be described by the following overall reaction

Determine the product yield coefficient YEtOH/S 
TLS Online TPP Program

#Question id: 14177

#Section 5: Bioprocess Engineering and Process Biotechnology

The growth of S. cerevisiae on glucose under anaerobic conditions can be described by the following overall reaction

Determine the product yield coefficients YCO2/S 
TLS Online TPP Program

#Question id: 14178

#Section 5: Bioprocess Engineering and Process Biotechnology

The growth of S. cerevisiae on glucose under anaerobic conditions can be described by the following overall reaction:
Determine the product yield coefficients YC3H8O3/S  _____________
TLS Online TPP Program

#Question id: 14179

#Section 5: Bioprocess Engineering and Process Biotechnology

The growth of S. cerevisiae on glucose under anaerobic conditions can be described by the following overall reaction: 

Determine the coefficient R.