Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETZoologyBiotechnology - Principles and Processes

In a sparged stirred-tank bioreactor, sterile air bubbles are sparged through the reactor contents. What is the primary functional advantage of this specific design feature?

Options

  1. AIt significantly increases the surface area for oxygen transfer.
  2. BIt acts as a foam breaker to prevent the overflow of the culture.
  3. CIt creates a curved base effect to facilitate the mixing of the reactor contents.
  4. DIt eliminates the need for a separate temperature control system.

Correct answer

A. It significantly increases the surface area for oxygen transfer.

Step-by-step solution

In a sparged stirred-tank bioreactor, sterile air bubbles are sparged through the liquid culture. According to NCERT, the primary advantage of sparging air bubbles is that it significantly increases the surface area for oxygen transfer, ensuring that aerobic microbes receive adequate oxygen for optimal growth. Foam breaking is done by a separate foam breaker, mixing is facilitated by the stirrer and curved base, and temperature control requires a separate jacket or system. Answer: It significantly increases the sur

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