NEET 2026
- Exam
- NEET
- Year
- 2026
- Subject
- Biology
- Chapter
- Chapter
NEET 2026 · Biology · Chapter
Observe the given diagram of a specific type of bioreactor....
Observe the given diagram of a specific type of bioreactor. Identify the correct statement regarding the component/feature labeled 'A'.
Options
- AIt represents the foam breaker which prevents the culture from overflowing during vigorous agitation.
- BIt represents chilled water circulated through a jacket to maintain the optimum temperature.
- CIt represents sterile air bubbles that significantly increase the surface area for oxygen transfer.
- DIt represents the acid or base added periodically to the culture for strict pH control.
Correct answer
C. It represents sterile air bubbles that significantly increase the surface area for oxygen transfer.
Step-by-step solution
The given diagram represents a sparged stirred-tank bioreactor.
In this type of bioreactor, sterile air is sparged (introduced as bubbles) through the reactor from the bottom using a sparger. The label 'A' points to these sterile air bubbles rising through the culture medium.
The primary function of sparging air into the medium is to provide oxygen to the growing aerobic microbes. The formation of numerous small bubbles significantly increases the interfacial surface area between the gas and the liquid, thereby facilitating efficient oxygen transfer into the culture medium.
Answer: It represents sterile air bubbles that significantly increase the surface area for oxygen transfer.
In this type of bioreactor, sterile air is sparged (introduced as bubbles) through the reactor from the bottom using a sparger. The label 'A' points to these sterile air bubbles rising through the culture medium.
The primary function of sparging air into the medium is to provide oxygen to the growing aerobic microbes. The formation of numerous small bubbles significantly increases the interfacial surface area between the gas and the liquid, thereby facilitating efficient oxygen transfer into the culture medium.
Answer: It represents sterile air bubbles that significantly increase the surface area for oxygen transfer.