Fermentation Kinetics Questions

• Lag phase occurs mainly due to
• The relatively large volume (10 to 40% of total fermenter volume) of the seed culture is employed to
• In an airlift bioreactor, the air sparging region is called
• Residence time distribution (RTD) of a reactor is independent of
• Concentration of the growth limiting substrate means
• At the end of the lag phase, when growth begins, the division rate increases gradually and reaches a maximum value in the exponential growth period. This transitional period is commonly called the accelerated growth phase and is often included as a part of the
• Which of the following(s) is/are considered the limitations of the exponential growth model?
• The optical density sometimes drops during the lag phase because
• Stirred tank fermenter (STF) can be employed for
• Which of the following statements would be appropriate while comparing bubble column and air lift fermenter of the same size?
• The air riser is located on the outside of the draft tube for the large-scale airlift bioreactors because of
• The application of just in time (JIT) manufacturing techniques in biotechnology is important because
• The height to diameter ratio (H/D) for the tank fermenters is
• In wastewater treatment, which bioreactor is generally used?
• A culture in a closed vessel to which no additional medium is added and from which no waste products are removed is called a __________ culture.
• During the log phase cell numbers increase exponentially
• The diameter of the baffles in a standard stirred tank bioreactor ranges from
• The advantage of airlift bioreactors over stirred tank bioreactors of a similar size is
• During the lag phase
• The contents in stirred tank rector are mixed through