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TLS Online TPP Program

#Question id: 405

When a mixture of glucose 6-phosphate and fructose 6-phosphate is incubated with the enzyme phosphohexose isomerase (which catalyzes the interconversion of these two compounds) until equilibrium is reached, the final mixture contains twice as much glucose 6-phosphate as fructose 6-phosphate.  Which one of the following statements is best applied to this reaction outlined below? (R = 8.315 J/mol·K; T = 298 K) Glucose 6-phosphate -> fructose 6-phosphate

#SCPH05 I Biotechnology

  1. DG'° is incalculably large and negative.

  2. DG'° is –1.72 kJ/mol.

  3. DG'° is  zero.

  4. DG'° is +1.72 kJ/mol.

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TLS Online TPP Program

#Question id: 14276

#SCPH05 I Biotechnology

Nicotiana tabacum cells are cultured to high density for production of polysaccharide gum. The reactor used is a stirred tank, containing initially 100 litres medium. The maximum specific growth rate of the culture is 0.18 d-1 and the yield of biomass from substrate is 0.5 g g-l. The concentration of growth-limiting substrate in the medium is 3% (w/v). The reactor is inoculated with 1.5 g l- 1 cells and operated in batch until the substrate is virtually exhausted; medium flow is then started at a rate of 4 l d-1. Fed-batch operation occurs under quasi-steady-state condition. The fermenter is available 275 d per year with a downtime between runs of 24 h. How much plant cell biomass is produced annually? ___________________

TLS Online TPP Program

#Question id: 15701

#SCPH05 I Biotechnology

In a sequence logo of the type given below, the sizes of the letters are proportional to the:
TLS Online TPP Program

#Question id: 15588

#SCPH05 I Biotechnology

For a Rushton turbine impeller (Reynold’s number greater than 10,000) when RPM is doubled, the power absorption increases by:
TLS Online TPP Program

#Question id: 1619

#SCPH01 Biochemistry

Which of the following statements is TRUE of interferons?
TLS Online TPP Program

#Question id: 18218

#SCPH01 Biochemistry

Which of the following is an incorrect statement about the terminologies related to protein sorting?