GATE 2022 BT – Question 23
Match the microbial product (Column I) with its respective application (Column II).
| Column I | Column II |
|---|---|
| P. Methane | 1. Biosurfactant |
| Q. Glycolipids | 2. Bioplastic |
| R. Polyhydroxy alkanoate | 3. Biofuel |
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Correct answer: (D) P-3, Q-1, R-2
Explanation
Match each microbial product with its use.
- **P. Methane:** produced by methanogens in biogas digesters and used as a **biofuel**. P-3.
- **Q. Glycolipids** (such as rhamnolipids and sophorolipids): amphiphilic molecules made by microbes that lower surface tension, so they are **biosurfactants**. Q-1.
- **R. Polyhydroxyalkanoate (PHA):** a carbon-storage polymer made by bacteria that is biodegradable, used as a **bioplastic**. R-2.
Match: **P-3, Q-1, R-2** (option D).