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Bioreactors

Mediumbiology

Sparger in stirred-tank bioreactor primarily provides:

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About This Question

Subject
biology
Chapter
biotechnology and its applications
Topic
bioreactors
Difficulty
Medium
Year
2025
Tags
BioreactorAeration

Solution

Correct Answer:

Sterile air bubbles

  1. Bioreactor Design: Large scale production of biological products requires controlled environments. The stirred-tank bioreactor is most common.
  2. Oxygen Requirement: Aerobic microorganisms need a constant supply of oxygen for growth.
  3. Aeration System: The sparger is a device (like a perforated pipe) located at the bottom that blows sterile air bubbles into the culture medium.
  4. Purpose: Bubbles increase the surface area for oxygen transfer from the air to the liquid medium, ensuring cells have enough to metabolize.

This medium difficulty biology question is from the chapter biotechnology and its applications, covering the topic of bioreactors. It appeared in the 2025 exam.

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