Bioreactors for Large-Scale Production — NEET Biology
✅ Asked in NEET 2024Which of the following statements is incorrect? (NEET 2024)
Which of the following statements is incorrect? (NEET 2024)
Answer & NCERT explanation
Correct answer: D — Bio-reactors are used to produce small scale bacterial cultures.
The incorrect statement is that bioreactors are used for small scale bacterial cultures. Actually, bioreactors are designed for large-scale commercial production, not small scale. They provide controlled environment for mass production of products like antibiotics, vaccines, enzymes. Small scale cultures are done in flasks or test tubes, not bioreactors.
Read more NCERT concept on the PYQ
Small volume cultures cannot yield appreciable quantities of products. To produce in large quantities, the development of bioreactors, where large volumes (100-1000 litres) of culture can be processed, was required. Thus, bioreactors can be thought of as vessels in which raw materials are biologically converted into specific products, individual enzymes, etc., using microbial plant, animal or human cells. A bioreactor provides the optimum conditions for achieving the desired product by providing optimum growth conditions (temperature, pH, substrate, salts, vitamins, oxygen).
Bioreactors are large vessels (100-1000 litres) that enable commercial-scale production of biological products using microbial, plant, or animal cells—unlike small laboratory cultures that cannot produce appreciable quantities. NTA tests this by asking students to distinguish between small-scale culture limitations and large-scale bioreactor capabilities, or by asking what volume is processed in industrial bioreactors. The trap: students confuse laboratory cultures with industrial bioreactors, or forget the specific volume range (100-1000 litres). Remember: bioreactors maintain optimal conditions (temperature, pH, oxygen, nutrients) and scale up production from mililitres to thousands of litres, making them essential for pharmaceutical, enzyme, and vaccine manufacturing.
What does NCERT say about Small volume cultures cannot?
Has this concept appeared in NEET?
Which chapter is this from?
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
88/90MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.