| List I | List II | ||
| A. | Methanobacterium | I. | Butyric acid |
| B. | Monoseus purpuress | II. | Break down of cellulose |
| C. | Clostridium butyricum | III. | Clot buster |
| D. | Streptococcus | IV. | Blood-cholestrol lowering agent |
| List -I | List-II | ||
| A | Aspergillus niger | I | Butyric acid |
| B | Clostridium butylicum | II | Acetic acid |
| C | Saccharomyces cervisiae | III | Citric acid |
| D | Acetobacter aceti | IV | Ethanol |