| List I Enzymes | List II Reaction Catalysed | ||
| A | Nitrate reductase | I | Conversion of 1-aminocyclo propane-1-carboxylic acid to ethylene |
| B | Alternative oxidase | II | Conversion of citrate to isocitrate |
| C | Aconitase | III | Reduction of oxygen to water |
| D | ACC Oxidase | IV | Conversion of nitrate to nitrite |
Choose the correct answer from the options given below:
| List-I (Function) | List-II (Organism) |
| (A) Nitrogen fixation (bacterium) | (I) Saccharomyces |
| (B) Phosphorous absorption | (II) Azospirillum |
| (C) Nitrogen fixation (cyanobacterium) | (III) Glomus |
| (D) Ethanol Production | (IV) Oscillatoria |



