Question

Match the media component (Column I) with its role (Column II).

• A. P – 1, Q – 3, R – 4, S – 2
• B. P – 2, Q – 1, R – 3, S – 4
• C. P – 3, Q – 2, R – 4, S – 1
• D. P – 3, Q – 4, R – 1, S – 2

Hint:

When matching components with their roles, remember the common uses of chemicals in industrial and laboratory processes, such as sucrose as a carbon source and ammonium sulphate as a nitrogen source.

Answer 1

The Correct Option is D

- P. Sucrose is commonly used as a carbon source in microbial growth media. It provides the energy required for growth. So, P matches with 3 (Carbon source).
- Q. Zinc chloride is used as a trace element, often added to media in small quantities for enzyme activity or other biochemical functions. So, Q matches with 4 (Trace element).
- R. Ammonium sulphate provides nitrogen, which is essential for protein synthesis. So, R matches with 2 (Nitrogen source).
- S. Silicone oil is used as an anti-foam agent in bioreactors, helping to reduce foam formation. So, S matches with 1 (Anti-foam agent).
Step 1: Conclusion
The correct matching is (C) P – 3, Q – 2, R – 4, S – 1.