McqMate
| Q. |
Enzymes are - |
| A. | Steroids |
| B. | Carbohydrates |
| C. | Proteins |
| D. | Lipids |
| Answer» C. Proteins | |
| Explanation: Enzymes are proteins that speed up chemical reactions in the cell. They are highly selective catalysts, greatly accelerating both the rate and specificity of metabolic reactions. Most enzymes are proteins, although some catalytic RNA molecules have been identified. | |
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