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GATE 2024 BT – Question 52

Fundamentals of Biological Engineering · Bioreaction Engineering: Kinetics of cell growth, substrate utilization and product formation, structured and unstructured models · 2 marks · Multiple select

Which of the following factors can affect the growth of a microbial culture in a batch cultivation process?

  1. pH of the medium
  2. Osmolarity of the medium
  3. Substrate concentration in the medium
  4. Substrate feed rate

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Show answer and explanation

Correct answer: (A) pH of the medium; (B) Osmolarity of the medium; (C) Substrate concentration in the medium

Explanation

pH, osmolarity and the substrate concentration all affect growth. A batch process has no feed, so the feed rate does not apply.