| 1. | Nicotinamide adenine dinucleotide | 2. | Haem |
| 3. | Zinc | 4. | Niacin |
| 1. | prosthetic group and is a part of active site |
| 2. | prosthetic group and is not a part of active site |
| 3. | is a co-enzyme |
| 4. | is a co-substrate |
| (A) | All enzymes are proteinaceous in nature. |
| (B) | Some competitive inhibitors are often used in the control of bacterial pathogens. |
| (C) | Active site of an enzyme is formed by the folding of the backbone of tertiary structure of protein upon itself. |
| 1. | Statements (A) and (B) are correct |
| 2. | Statements (B) and (C) are correct |
| 3. | Statements (A) and (C) are correct |
| 4. | Statements (A), (B) and (C) are correct |