TLS Online TPP Program

#Question id: 407


The reaction A + B -> C has a DG'° of –20 kJ/mol at 25° C.  Starting under standard conditions, one can predict that:

#Biochemistry
  1. at equilibrium, the concentration of B will exceed the concentration of A.

  2. at equilibrium, the concentration of C will be less than the concentration of A.

  3. at equilibrium, the concentration of C will be much greater than the concentration of A or B.

  4. C will rapidly break down to A + B.

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TLS Online TPP Program

#Question id: 37876

#Plant Biotechnology

Which type of open culture is ideal for studying the effect of an individual nutrient on cell growth and metabolism?

TLS Online TPP Program

#Question id: 37877

#Plant Biotechnology

In a turbidostat, fresh medium is added:

TLS Online TPP Program

#Question id: 37878

#Plant Biotechnology

Assertion (A): In a closed continuous culture system, the total cell biomass continues to increase over time. 
Reason (R): In this system, cells are separated from the removed spent medium and recycled back into the culture vessel

Choose the correct option from the following:

TLS Online TPP Program

#Question id: 37879

#Plant Biotechnology

Assertion (A): Open continuous cultures are capable of maintaining cells in a steady state of submaximal growth indefinitely.
Reason (R): In open continuous cultures, only the spent medium is removed while the cells are retained within the bioreactor.

Choose the correct option from the following:

TLS Online TPP Program

#Question id: 37880

#Plant Biotechnology

Assertion (A): To maintain a steady state in an open continuous culture, the volume of fresh medium added must be equal to the volume of culture removed. 
Reason (R): Without balancing the input and output volumes, the culture volume would change, disrupting the steady state and nutrient availability.

Choose the correct option from the following:

TLS Online TPP Program

#Question id: 37881

#Plant Biotechnology

Assertion (A): Continuous culture systems are strictly classified as closed systems where no material leaves the vessel. 
Reason (R): Continuous cultures require the regular replacement of a portion of the spent medium with fresh medium.

Choose the correct option from the following: