Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2016ZoologyBiotechnology - Principles and ProcessesActual

Stirred-tank bioreactors have been designed for:

Options

  1. APurification of product
  2. BAddition of preservatives to the product
  3. CAvailability of oxygen throughout the process
  4. DEnsuring anaerobic conditions in the culture vessel

Correct answer

C. Availability of oxygen throughout the process

Step-by-step solution

Stirred-tank bioreactor is provided with a stirrer for the availability of oxygen throughout the process. In stirred tank bioreactors, the air is bubbled through the reactor using a sparger. Air bubbles increase the surface area for transfer of oxygen and result in better mixing. The function of the agitation system is to increase mass transfer rates through the bulk liquid and bubble boundary layers by providing proper mixing.

Practice Biotechnology - Principles and Processes on Quantrex Academy →

More from Biotechnology - Principles and Processes

During PCR, primers bind to the DNA strands in the __________ step. 2026Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R . Assertion A : In recombinant DNA technology, lysozyme is used for disrupting 2026Which of the following statements are not true regarding restriction endonucleases ? A. They are called molecular scissors. B. These are the enzymes responsible for restricting the 2026Which of the following statements are correct with respect to DNA separation, isolation and visualization ? A. The cutting of DNA is done by molecular scissors. B. The DNA fragment 2026Match List I with List II : List I List II A. Genetically modified organism I. Agrobacterium tumefaciens B. Thermostable DNA polymerase II. Bt cotton C. Ti plasmid III. Thermus aqu 2026In the above represented plasmid, an alien piece of DNA is inserted at EcoRI site. Which of the following strategies will be chosen to select the recombinant colonies? 2025Given below are two statements : Statement I: The DNA fragments extracted from gel electrophoresis can be used in construction of recombinant DNA. Statement II : Smaller size DNA f 2025Which of the following cannot be used for direct gene transfer? 2019 Full Biotechnology - Principles and Processes list All NEET PYQs