Enzymes are active

Options

A. Even in small concentration
B. Only in small concentration
C. Only in large concentration
D. Even in the absence of `H_(2)O`

Answer

**Step-by-Step Solution:**

1. **Understanding Enzymes**: Enzymes are biological catalysts that speed up biochemical reactions in living organisms. They lower the activation energy required for reactions to occur.

2. **Concentration of Enzymes**: Enzymes can function effectively even in small concentrations. This is because a single enzyme molecule can catalyze multiple reactions, making it very efficient.

3. **Factors Affecting Enzyme Activity**: The activity of enzymes depends on several factors, including:
- **Optimum Temperature**: Enzymes have an optimal temperature range where they function best.
- **Optimum pH**: Each enzyme has an optimal pH range for maximum activity.

4. **Analyzing the Options**: The question presents several options regarding the activity of enzymes:
- "Active even in small concentration" is correct because enzymes can catalyze reactions effectively in low amounts.
- "Only in large concentration" is incorrect because enzymes do not require large amounts to be effective.
- "Even in absence of H2O" is incorrect because most enzymatic reactions require water as a medium for the reaction to occur.

5. **Conclusion**: The correct answer is that enzymes are active even in small concentrations. This is the only statement that accurately reflects the nature of enzyme activity.

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