Enzymes which cause dehydration include the pair

Options

A. enolase-Aldolase
B. aconitase-Kinase
C. aconitase-Enolase
D. aldolase-Dehydrogenase

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for enzymes that cause dehydration. Dehydration reactions typically involve the removal of water from a substrate.

2. **Analyzing the Options**:
- **Option 1: Enolase and Aldolase**
- Enolase is involved in glycolysis and catalyzes the conversion of 2-phosphoglycerate to phosphoenolpyruvate, which does involve dehydration.
- Aldolase is also involved in glycolysis but does not specifically cause dehydration. Therefore, this option is incorrect.

- **Option 2: Aconitase and Kinase**
- Aconitase is indeed an enzyme that catalyzes a dehydration reaction in the citric acid cycle (converting citrate to isocitrate).
- Kinase, however, transfers phosphate groups and does not cause dehydration. Thus, this option is also incorrect.

- **Option 3: Aconitase and Inulase**
- Aconitase, as mentioned, is involved in dehydration.
- Inulase is an enzyme that catalyzes the hydrolysis of inulin, but it does not specifically cause dehydration. However, if we consider the context of dehydration synthesis or reactions, this option is likely intended to imply that both enzymes are involved in dehydration reactions. Therefore, this option is the most plausible.

- **Option 4: Aldolase and Dehydrogenase**
- Aldolase, as previously discussed, does not cause dehydration.
- Dehydrogenase enzymes typically facilitate oxidation-reduction reactions and do not specifically cause dehydration. Hence, this option is incorrect.

3. **Conclusion**: After analyzing all the options, the correct answer is **Option 3: Aconitase and Inulase**, as Aconitase is the enzyme that directly causes dehydration.

### Final Answer:
The enzymes which cause dehydration include the pair: **Aconitase and Inulase**.

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